Top Banner
Shell Nigeria Exploration and Production Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 Telecommunications OPRM-2003-0334 Version: 1.0 This document is not confidential. The Copyright of this document is vested in Shell Nigeria Exploration and Production Company Limited. All rights reserved. Neither the whole nor any part of this document may be reproduced, stored in any retrieval system or transmitted in any form or by any means (electronic, mechanical, reprographic, recording or otherwise) without the prior written consent of the copyright owner.
148

V34-Telecommunications.pdf

Jul 18, 2016

Download

Documents

Anthony Rosa
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: V34-Telecommunications.pdf

Shell Nigeria Exploration and Production Company Limited

Bonga FPSO Plant Operating Procedures Manual

Volume 34 Telecommunications

OPRM-2003-0334

Version: 1.0

This document is not confidential. The Copyright of this document is vested in Shell Nigeria Exploration and Production Company Limited. All rights reserved. Neither the whole nor any part of this document may be reproduced, stored in any retrieval system or transmitted in any form or by any means (electronic, mechanical, reprographic, recording or otherwise) without the prior written consent of the copyright owner.

Page 2: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

OPRM-2003-0334 Page i of ix Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Main Table of Contents

Document Status Information Abbreviations Reference Information/Supporting Documentation

Part 1 – Technical Description Section 1 System Overview Section 2 External Communication Systems Section 3 Internal Communication Systems Section 4 Navigation Systems

Part 2 – Operating Procedures Section 1 System Operating Procedures Section 2 Equipment Operating Procedures Section 3 Supplementary Operating Procedures

Page 3: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

OPRM-2003-0334 Page ii of ix Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Document Status Information

DOCUMENT CONTROL

Change History

Date Version Author Ref Indicator Change Description

01/04/04 1.0 ODL – Issue of document for signature.

Ownership and Authorisation

Name Ref Indicator

Signature Date

Document Owner Frank Mihlon, Operations Manager

Document Custodian Golden Iruayenana, Operations Superintendent

Reviewed by

Authorised By

Revision Date This document should be reviewed by 01-April-2005. Revisions should be completed by 01-May-2005.

Page 4: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

OPRM-2003-0334 Page iii of ix Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Review and Update This document shall be subject to 12-monthly review and update, when document holders will have the opportunity to express opinions and suggest improvements. However, the document control system allows for continuous update of this document. As such, any user may at any time identify an error or suggest an improvement using an Amendment Proposal proforma which is available on the SNEPCO Livelink or from the Document Control Centre (DCC) Supervisor. All holders of this document are registered so that they can be sent updates and be kept informed of changes or reviews.

Page 5: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

OPRM-2003-0334 Page iv of ix Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

1.0 PURPOSE The purpose of this document is to provide guidance on the safe, efficient and environmentally aware operation of the Telecommunications System. It is one Volume within an overall suite of Volumes which comprise the Bonga FPSO Plant Operating Procedures Manual (POPM). The full listing of Volumes is as follows: Volume 1 Field and Facilities Overview Volume 2A Subsea Production System Volume 2B Subsea Waterflood System Volume 2C Subsea Control System Volume 2D Flow Assurance Guidelines Volume 3 Oil Separation and Treatment Volume 4 Oil Storage, Handling and Ballast Systems Volume 5 Oil Metering and Export System Volume 6 Vapour Recovery Compression System Volume 7 Field Gas Compression System Volume 8 Gas Dehydration/Glycol Regeneration Systems Volume 9 Gas Export/Import/Lift Systems (incl Metering) Volume 10 Flare and Vent Systems Volume 11 Produced Water Treatment Systems Volume 12 Waterflood System Volume 13 Chemical Injection and Methanol Injection System Volume 14 Fuel Gas System Volume 15 Heating Medium System Volume 16 Drainage Systems Volume 17 Sewage Treatment Systems Volume 18 Bilge and Oily Water Separation Systems Volume 19 Inert Gas System Volume 20 Nitrogen Generation System Volume 21 Seawater System Volume 22 Fresh and Potable Water Systems Volume 23 Diesel Fuel System and Incinerator Volume 24 Aviation Fuel System Volume 25 Instrument and Utility Air System Volume 26 Deck Hydraulic Systems Volume 27 Fire Protection Systems and Equipment Volume 28 Safety and Lifesaving Equipment Volume 29 Emergency Support System (Fire and Gas, SSS) Volume 30 Power Generation and Distribution Systems Volume 31 Process Control System Volume 32 HVAC Systems Volume 33 Deck Machinery and Mechanical Handling Systems (Cranes, etc) Volume 34 Telecommunications

2.0 SCOPE The document provides a detailed description of the plant and equipment which comprise the Telecommunications System and includes step-by-step guidance on the operation of the system and its equipment, under both normal and abnormal operation.

Page 6: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

OPRM-2003-0334 Page v of ix Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

3.0 TARGET READERSHIP All SNEPCO staff, contractors and other third-party personnel who may be involved in the operation of the Telecommunications System onboard the Bonga FPSO.

4.0 SPECIAL NOTE Not applicable.

5.0 ABBREVIATIONS The abbreviations used within this POPM are listed at the end of these introductory pages.

6.0 REFERENCE INFORMATION/SUPPORTING DOCUMENTATION The primary reference/supporting documents which have been either used or referred to in the development of this document are listed at the end of these introductory pages. These are part of the available Operational Documentation which SNEPCO Offshore Operations (OO) has in place to support its day-to-day operations. These and many other documents are available within the SNEPCO Livelink System. Where appropriate, these documents have been cross-referenced within this document.

Page 7: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

OPRM-2003-0334 Page vi of ix Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Abbreviations AC Alternating Current ACU Antenna Control Unit AF Audio-frequency AGC Automatic Gain Control AM Amplitude Modulation AOR-E Atlantic Ocean Region East AOR-W Atlantic Ocean Region West ARC Audio Remote Control ARPA Automatic Radar Plotting Aid BASEEFA British Approvals Service for Electrical Equipment

in Flammable Atmospheres CCC Communication Control Console CCR Central Control Room CCTV Closed Circuit Television CELP Code Excited Linear Prediction CER Communications Equipment Room DC Direct Current DGPS Digital Global Positioning System DIP Dual In-line Package DNID Data Network Identifier DSC Digital Selective Calling DTMF Dual Tone Multi-frequency DTR Data Telecomms Room DW Dual Watch EGC Enhanced Group Call EPIRB Emergency Position Indicating ESD Emergency Shutdown FM Frequency Modulation FPSO Floating Production, Storage and Offloading FSR Forward Switch Room GA General Alarm GMDSS Global Maritime Distress and Safety System GPS Global Positioning System GSM Global System for Mobile Communication HF High Frequency

Page 8: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

OPRM-2003-0334 Page vii of ix Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Abbreviations (cont’d) ICC Incident Control Centre ICAO International Civil Aviation Organisation IE Current/Field IMU Inertia Measurement Unit IOC Index of Co-operation IOR Indian Ocean Region IP Intermediate Pressure IS Intrinsically Safe ITU International Telecommunications Union JB Junction Box LAN Local Area Network LED Light Emitting Diode LES Land Earth Station LNB Low Noise Bloc LUT Local User Transmitter MCC Mission Control Centre MDF Main Distribution Frame MES Mobile Earth Station MF Medium Frequency MMSI Maritime Mobile Ship Identification NBDP Narrow Band Direct Printing NCS Network Co-ordination Station NDB Non-directional Beacon NOMAR Notice to Mariners OIM Offshore Installation Manager PA Public Address PABX Private Automated Branch Exchange PAGA Public Announcement and General Alarm PAPA Prepare to Abandon Platform PAS PanAmSat POPM Plant Operating Procedures Manual POR Pacific Ocean Region PTT Push To Talk QSIG Standard for Q Reference Point Signalling RCC Rescue Co-ordination Centre RF Radio Frequency RTTY Radio Teletype

Page 9: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

OPRM-2003-0334 Page viii of ix Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Abbreviations (cont’d) SART Search and Rescue Transponder SCM Station Control Module SOLAS Safety of Life at Sea SQ Squelch SSB Single Side Band TER Telecomm Equipment Room THD Total Harmonic Distortion TVRO Television Receive Only UHF Ultra High Frequency UPS Uninterruptible Power Supply USB Upper Sideband UTP Unshielded Twisted Pair VHF Very High Frequency VSWR Voltage Standing Wave Ratio

Page 10: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

OPRM-2003-0334 Page ix of ix Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Reference Information/Supporting Documentation

Project Data

Document No/Ref Document Title

BON/1EA1204/INVSAT/000001 Radar Plant (X-Band)

BON/1EA1204/INVSAT/000002 GPS (Complete)

BON/1EA1204/INVSAT/000003 Gyro Compass (Dual)

BON/1EA1204/INVSAT/000004 Entertainment Equipment

BON/1EA1204/INVSAT/000005 Weather Facsimile

BON/1EA1204/INVSAT/000006 Main Radio Plant

BON/1EA1204/INVSAT/000007 VHF Portable Transceiver

BON/1EA1204/INVSAT/000008 Sart, Radar Transponder

BON/1EA1204/INVSAT/000009 EPIRB

BON/1EA1204/INVSAT/000010 Inmarsat-B System

BON/1EA1204/INVSAT/000011 Inmarsat-C System

BON/1EA1204/INVSAT/000012 Onboard UHF System

BON/1EA1204/INVSAT/000013 Aeronautical Radio

BON/1EA1204/INVSAT/000014 Public Addresser

BON/1EA1204/INVSAT/000015 Auto Telephone

BON/1EA1204/INVSAT/000016 Helicopter Non-directional Beacon

BON/1EA1204/INVSAT/000019 Weather Monitoring System

BON/1EA1204/INVSAT/000020 Navtex Receiver

BON/1EA1204/INVSAT/000021 VHF Radio Telephone

BON/1BA0482/HANIL/000001 Clock System

BON/1BA0860/HYUNJIN/000001 Control Panel for Nav and Signal Light

BON/1BA0860/HYUNJIN/000002 Control Panel for Signal Light

BON/1BA0860/HYUNJIN/000003 Control Panel for Outside Lights

BON/1DA0860/ORGA/000001 Navigation Aids System

BON/1HA2112/SARACOM/000001 Fire Detection/General Alarm

BON/5GA7710/SEUN/000001 Hospital Call Bell System

BON/5GA7710/SEUN/000002 Ref Chamber Alarm System

Page 11: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Technical Description OPRM-2003-0334 Page 1 of 1 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Part 1 Technical Description

Section 1 System Overview

Section 2 External Communication Systems

Section 3 Internal Communication Systems

Section 4 Navigation Systems

Page 12: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 1 System Overview OPRM-2003-0334 Page 1 of 9 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Part 1 Technical Description

Section 1 System Overview

Table of Contents

1.0 INTRODUCTION.......................................................................................................... 2

2.0 EXTERNAL COMMUNICATION SYSTEMS OVERVIEW ............................................ 2 2.1 Radio Equipment for Lifeboats, Liferafts and Rescue Boat................................ 2 2.2 Area A3 GMDSS Radio Plant............................................................................ 3 2.3 Aeronautical VHF Radio.................................................................................... 5 2.4 Inmarsat ............................................................................................................ 5 2.5 UHF Repeater Radio System............................................................................ 6 2.6 NDB System ..................................................................................................... 6 2.7 Tanker ESD ...................................................................................................... 6 2.8 VHF AM Weather Transceiver........................................................................... 6

3.0 INTERNAL COMMUNICATION SYSTEMS OVERVIEW.............................................. 7 3.1 PA, Intercom and General Alarm System.......................................................... 7 3.2 Auto Telephone System.................................................................................... 7 3.3 LAN System ...................................................................................................... 7 3.4 Entertainment System....................................................................................... 8 3.5 CCTV System ................................................................................................... 8

4.0 NAVIGATION SYSTEMS OVERVIEW ......................................................................... 8 4.1 Radar System ................................................................................................... 8 4.2 Gyrocompass.................................................................................................... 8 4.3 Ship’s Clock System.......................................................................................... 9 4.4 GPS .................................................................................................................. 9 4.5 Navigation and Signal Lights System ................................................................ 9 4.6 Weather Monitoring System .............................................................................. 9 4.7 Tanker Berthing Aid .......................................................................................... 9

Page 13: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 1 System Overview OPRM-2003-0334 Page 2 of 9 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

1.0 INTRODUCTION Communications, including Navigation Systems, on the Floating Production, Storage and Offloading (FPSO) consist of 20 subsystems derived from three main systems, as follows:

• External Communications Systems

− Radio equipment for lifeboats and rescue boat

− Area A3 Global Maritime Distress and Safety System (GMDSS) radio plant

− Aeronautical VHF Radio

− Inmarsat B

− UHF repeater radio system

− Non-direction Beacon (NDB) system

− Tanker Emergency Shutdown (ESD)

− VHF AM weather transceiver

• Internal Communications Systems

− Public Address (PA), intercom and general alarm system

− Auto telephone system

− Local Area Network (LAN) system

− Entertainment system

− CCTV system

• Navigation System

− Radar system

− Gyrocompass

− Ship’s clock system

− Global Positioning System (GPS)

− Navigation and signal lights system

− Weather monitoring system

− Tanker berthing aid

2.0 EXTERNAL COMMUNICATION SYSTEMS OVERVIEW

2.1 Radio Equipment for Lifeboats, Liferafts and Rescue Boat This system consists of the radio equipment, both communications and position-indicating, onboard each of the lifeboats and rescue boat and located near the liferafts. The equipment is located as follows:

• The five lifeboats have Marine VHF Radios, SART Radar Transponders (9.2GHz) and Satellite Emergency Position Indicatng Beacons (EPIRBs) (406MHz)

Page 14: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 1 System Overview OPRM-2003-0334 Page 3 of 9 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

• Liferafts have integral Satellite EPIRBs (406MHz) and three SART Radar Transponders (9.2GHz) are installed near these locations; two aft and one at the forward liferaft

• The rescue boat has a Marine VHF Radio, one SART Radar Transponder (9.2GHz) and two sets of safety helmets with headsets are provided

• Additionally, there are eight portable VHF transceivers for use as needed The ac power to each of the battery chargers in the boats is 42V. This is a standard Safety of Life at Sea (SOLAS) voltage that is used for any equipment sitting outboard from the vessel. The power being fed to the radio battery charger is 230V. The charger is under the control of the ESD system and will be disconnected if gas is detected onboard.

2.2 Area A3 GMDSS Radio Plant The Radio Plant System represents all of the onboard GMDSS equipment as required for Area A3 certification. Under the terms of the SOLAS (Safety of Lives at Sea) Convention of 1974, as amended, every vessel while at sea must have the facilities for essential communications, namely:

• Transmitting ship-to-shore distress alerts by at least two separate and independent means

• Receiving shore-to-ship distress alerts

• Transmitting and receiving ship-to-ship distress alerts

• Transmitting and receiving search and rescue co-ordinating communications

• Transmitting and receiving on-scene communications

• Transmitting and (as required) receiving signals for locating

• Transmitting and receiving maritime safety information

• Transmitting and receiving general radio communications to and from shore-based radio systems or networks

• Transmitting and receiving bridge-to-bridge communications Specific equipment requirements for vessels vary according to the sea area (or areas) in which they operate. GMDSS combines various subsystems, which all have different limitations with respect to coverage, into one overall system, and the oceans are divided into four sea areas as follows:

• Area A1 – Within range of VHF coast stations with continuous Digital Selective Calling (DSC) alerting available (about 20 to 30 miles)

• Area A2 – Beyond Area A1, but within range of MF coastal stations with continuous DSC alerting available (about l00 miles)

• Area A3 – Beyond Areas A1 and A2, but within coverage of geostationary maritime communication satellites (Inmarsat). This covers the area between roughly 70oN and 70oS

Page 15: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 1 System Overview OPRM-2003-0334 Page 4 of 9 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

• Area A4 – The remaining sea areas. The most important of these is the sea around the North Pole (the area around the South Pole is mostly land). Geostationary satellites, which are positioned above the equator, cannot reach this far

To meet the SOLAS/GMDSS requirements, every vessel operating within Area A3 must carry the following as the minimum equipment:

• An Inmarsat C Mobile Earth Station (MES)

• An MF radio installation and 2187.5kHz DSC watchkeeping receiver

• A 406MHz EPIRB OR • An MF/HF radio installation capable of transmitting and receiving on all distress

and safety frequencies in the (marine) bands between 1605kHz and 27,500kHz: using DSC, radiotelephony and Narrow Band Direct Printing (NBDP)

• An MF/HF DSC watchkeeping receiver capable of maintaining DSC watch on 2187.5kHz, 8414.5kHz and on at least one of the distress and safety DSC frequencies 4207.5kHz, 6312kHz, 12,577kHz or 16,804.5kHz. At any time, it shall be possible to select any of these DSC distress and safety frequencies

• A 406MHz EPIRB

• An Inmarsat MES The majority of the GMDSS equipment on Bonga is installed in and around a four-bay radio console complete with two gooseneck lights. The equipment includes an MF/HF transceiver complete with telexing facility, an HC4500 HF Control Unit, an HA4525A aerial coupler complete with built-in dummy load, plus MF/HF/SSB Tx and Rx antennae. A battery charger, complete with remote monitor, and a battery panel for remote monitoring, plus a main isolation switch for radio equipment in a wall-mounted case and a 2KVA ac bypass panel, form the power supply for the GMDSS. A printer, telex terminal and Weather Fax Rx, for operation from the MF/HF/SSB Transceiver plus a Navtex Rx printer, complete with active antenna are supplied for early advice of weather and navigation warnings. Two sets of marine VHF radios, Sailor RT 4822 VHF-DSC, two sets of VHF Marine Intrinsically Safe (IS) hand-portable radios and an Inmarsat C terminal, as part of the GMDSS equipment, are installed in the Central Control Room (CCR). The GMDSS equipment is set up such that it is normally powered via telecom Uninterruptible Power Supply (UPS) from the essential switchboard. In the case of this system failing, the system changes over to the emergency switchboard. In the unlikely event of a total system loss, a hand-portable, battery powered ‘Mini-M’ satellite telephone terminal is held by the OIM.

Page 16: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 1 System Overview OPRM-2003-0334 Page 5 of 9 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

2.3 Aeronautical VHF Radio The Aeronautical VHF Radio System consists of:

• VHF AM transceiver units (118 to 137MHz) complete with rack mount, microphone and antenna

• Two UHF FM/VHF AM translator units (console/rack-mounted) complete with antennae

• Two IS UHF hand-portables with standard accessories and remote speaker microphones

• Two single-slot battery chargers

• Two VHF AM remote control units complete with microphones The system has been configured such that the UHF FM hand-portables are able to talk to aircraft on VHF AM via the translator. This system is used because intrinsically safe AM hand-portables are generally not available. UHF hand-portables also suffer less from interference when used around fluorescent lighting and high-voltage power circuits.

2.4 Inmarsat The Inmarsat satellite communications system provides two-way direct-dial phone, telex, facsimile and data communications at rates up to 9.6kbit/sec to and from anywhere in the world, with the exception of the polar regions. An Inmarsat terminal is a small self-contained satellite earth station comprising above-deck equipment containing a parabolic antenna and electronics, and below-deck equipment containing electronic units, power supplies and interface connections to telex, telephone, modem and facsimile equipment. Inmarsat ship-borne terminals are referred to as a Mobile Earth Stations (MESs). In the same way, land-based stations, through which communications are routed, are known as Land Earth Stations (LESs). A call from an MES is routed via the Inmarsat network to an LES and thence into the national and international phone, telex and data networks. There are four ocean regions covering the world, each with its own operational satellite. Transmission and reception of signals are co-ordinated by four Network Co-ordination Stations (NCSs), one for each ocean region:

• Atlantic Ocean Region East (AOR-E)

• Atlantic Ocean Region West (AOR-W)

• Indian Ocean Region (IOR)

• Pacific Ocean Region (POR) Each NCS monitors the flow of communications traffic through its satellite to ensure that calls are correctly set-up and that all LESs are working correctly. All Inmarsat maritime systems make use of 2-digit codes to facilitate transmission and reception of various types of maritime information. An Inmarsat maritime terminal installed on a vessel has the capability of transmitting distress calls on either telephone or telex.

Page 17: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 1 System Overview OPRM-2003-0334 Page 6 of 9 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

The Bonga Inmarsat systems consist of a stabilised Standard B Inmarsat terminal, and an Area A3 compliant, GMDSS Inmarsat C terminal, complete with display unit, keyboard, telephone handset, telex terminal, printer and a ‘Distress’ alarm button. There is also a portable, battery powered, Inmarsat ‘Mini-M’ terminal, held by the OIM. It is planned to add a digital multiplexer/bandwidth manager to the Inmarsat B System to allow the use of several 8kb/s CELP algorithm VF channels plus some data for use in the event of the main communications link failure.

2.5 UHF Repeater Radio System The UHF Radio System is a five-repeater system provided by Motorola MTR2000 located in the Telecomm Equipment Room (TER) on E Deck. The system consists of:

• Five INVSAT MSU 1000 UHF RF Distribution Units

• Ten Motorola UHF Base Stations (5-channel fully redundant)

• A distributed UHF antenna system covering the entire vessel

• Twenty-five Motorola GP900 UHF hand-portable radios

2.6 NDB System An NDB System for helicopters is installed in the TER on E Deck. The system consists of dual transmitters operating on a frequency between 190 and 535kHz. An automatic transfer unit has been included to change from one transmitter to another in the event of a failure. Between the transmitters and the helipad long-wire antenna is an antenna coupler, which acts as an automatic tuning unit to keep the antenna in tune with transmitters. A separate monitor receiver is located in the Incident Control Centre (ICC). A remote control unit allows the CCR to turn the NDB on or off without causing the monitor alarm to operate.

2.7 Tanker ESD An intrinsically safe, UHF FM hand-portable radio with antenna, battery, leather case and spare battery has been supplied for this system. The hand-portable is capable of sending a SELCALL signal from the shuttle tanker to the ESD UHF receiver unit mounted in the TER. The tones can be decoded to produce an ESD signal for use on the FPSO.

2.8 VHF AM Weather Transceiver The VHF/AM Weather Transceiver System consists of:

• VHF/AM Transmitter (118 to 137MHz) complete with rack mounting

• One antenna

• One power module The Weather Monitoring System is equipped with a voice message system, fitted for broadcasting weather information to aircraft via the VHF AM transceiver.

Page 18: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 1 System Overview OPRM-2003-0334 Page 7 of 9 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

3.0 INTERNAL COMMUNICATION SYSTEMS OVERVIEW

3.1 PA, Intercom and General Alarm System This Public Announcement and General Alarm (PAGA) system is made up of two central equipment racks based on Spector Lumenex’s ACE 100 System and each is capable of producing 5700W audio power. Two cabinets are installed for interconnection and distribution of audio and electrical signals. One system includes the Mentor Intercom System. The PAGA system is fully redundant, with one unit located in the Communications Equipment Room (CER) and another in the Data Telecomms Room (DTR) and both fed from independent UPS systems. A Mentor Intercom System is integrated into the PA system and located in the PA ‘A’ panel located in the CER. The intercom system provides for multiple individual conversations along with multi-party conversations. Access to the telephone exchange is also provided to allow Mentor stations to be used as telephones when needed. Redundant UPS give 8-hour independent operation of the PAGA system, based on a duty cycle of 5% full alarm, 10% normal speech/85% quiescent state. Two 19in rack-mounted PA access panels and one desktop unit, complete with gooseneck microphone, provide access to the system from the CCR, ICC and OIM’s office. Access to the PA systems is available through access panels, emergency hand-stations, the Private Automatic Branch Exchange (PABX) and the intercom system. Calls made via the PABX and intercom are delayed broadcasts. The General Alarm (GA) signal is an intermittent tone, followed by a verbal announcement over the PA system giving positive instructions to all personnel as to what actions are required. The GA is initiated either automatically on confirmed detection of fire or gas, or manually from the PA control panel in the CCR. The Prepare to Abandon Platform Alarm (PAPA) signal is a continuous tone of varying frequency and is initiated manually from the PA control panel or emergency hand-stations.

3.2 Auto Telephone System The auto telephone system consists of a PABX central equipment rack with operators/maintenance console, 150 extensions and QSIG. The PABX includes call-logging software. Distribution of PABX extensions is enabled through a Main Distribution Frame (MDF) and IS barrier cabinet in the DTR.

3.3 LAN System The LAN system has a physical layer that meets UTP Category 5 Ethernet and LAN RJ45 outlet connectors. Each outlet connector is cabled back to a main distribution frame in the DTR. The MDF is installed in two 19in racks with dual power supplies for additional telecoms equipment in one.

Page 19: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 1 System Overview OPRM-2003-0334 Page 8 of 9 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

3.4 Entertainment System The entertainment system consists of a stabilised 2.4m satellite Television Receive Only (TVRO) dish, which is suitable for simultaneous reception of horizontal and vertical polarised signals from the M-Net and PanAmSat (PAS) satellites. The satellite equipment terminates in a TER on E Deck and is distributed to receivers in the smoking and non-smoking lounges on C Deck. The non-smoking entertainment area includes a widescreen television, a TVRO receiver, for M-Net channels from PAS4, a DVD player, a VHS video player, stereo amplifiers and speakers, microphones and stand, complete with microphone mixer, devices to allow connection of PC (SVGA) to system for presentations on TV. The smoking entertainment area includes a widescreen TV and a TVRO receiver, for M-Net channels from PAS4. Lockable cabinets are provided for all equipment, complete with power socket and PC connection. In addition, each area has a transmit isolation unit and a PA/GA mute unit for PA override.

3.5 CCTV System The CCTV system consists of a central equipment rack, complete with field cable termination and camera power distribution, a video matrix with 32 camera input capacity, four monitor outputs (expandable), alarm inputs and video loss alarms, and three 21-inch colour monitors mounted above the CCR console. A desktop keyboard remotely controls cameras and monitors. A time-lapse video recorder is also controlled from this panel. There are four Exd pan and tilt cameras complete with wash systems and wipers controlled from this system.

4.0 NAVIGATION SYSTEMS OVERVIEW

4.1 Radar System The radar system consists of:

• An X band, rotating antenna (Scanner Unit Y-87AR-001) mounted on top of the radar mast on E Deck

• A Display Unit Y-87AD-001 mounted in the CCR on B Deck

4.2 Gyrocompass The gyrocompass system is based on dual Raytheon Gyrocompasses mounted in the TER on E Deck. Outputs from the gyrocompasses are fed through the Gyro Control Unit Y-87MK-00 to the various other systems requiring compass information. In addition, the control unit feeds Repeater Y-87MR-001 and Operator Unit Y-87MO-001 mounted in the CCR on B Deck.

Page 20: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 1 System Overview OPRM-2003-0334 Page 9 of 9 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

4.3 Ship’s Clock System The ship’s clock system is simply a series of independent battery-powered clocks in various locations. There is no master/slave relationship. The clocks are not Ex rated and do not become isolated at any stage of ESD.

4.4 GPS The GPS is based on a GPS display unit and GPS antenna mounted in the CCR on B Deck with Digital GPS (DGPS) receiver. The GPS signal is interfaced with VHF marine radios, V-sat system, radar, Inmarsat C, MF/HF transceiver and gyrocompasses.

4.5 Navigation and Signal Lights System The navigation and signal light system comprises all Navaids including two foghorns.

4.6 Weather Monitoring System The weather monitoring system, centred on the Weather Monitoring Cabinet Y-87ME-001 in the TER on E Deck, is powered from telecom UPS. The system generates voice messages, which are available through dial-in telephone lines and aeronautical band radio. The information included in this message is updated every 10 minutes and is interfaced with the LAN equipment cabinet in order to provide information to all PC users connected to LAN.

4.7 Tanker Berthing Aid The OSPREY berthing system consists of the four following pieces of equipment, with associated cables and connectors described below:

• Portable tanker unit (taken onboard visiting offtake tanker)

• Support vessel unit (semi-permanently on tug boat)

• Base-station unit (FPSO)

• Remote display/data archiving PC (FPSO)

Page 21: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 1 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Part 1 Technical Description

Section 2 External Communication Systems

Table of Contents

1.0 introduction ................................................................................................................ 3 1.1 VHF Radios....................................................................................................... 3 1.2 SART Radar Transponders (9.2GHz)................................................................ 5 1.3 Satellite EPIRBs................................................................................................ 6

2.0 Area A3 GMDSS Radio Plant ..................................................................................... 8 2.1 Sailor RT 4822 VHF-DSC ............................................................................... 10 2.2 Sailor C4901 Marine VHF Remote Control Handsets...................................... 12 2.3 Sailor N420 24V/12V DC Voltage Regulator ................................................... 13 2.4 Sailor System 4000 GMDSS ........................................................................... 13 2.5 Sailor HC 4500 MF/HF Telex Control Unit....................................................... 16 2.6 Sailor BP 4680 Battery Panel .......................................................................... 16 2.7 Inmarsat C ...................................................................................................... 17 2.8 Radiotelex DT 4646 Software Installation........................................................ 19 2.9 ICS Electronics Nav 5 Navtex Receiver........................................................... 19 2.10 ICS Electronics FAX 4 Weather Fax Receiver................................................. 20 2.11 Mini-M ............................................................................................................ 22

3.0 Aeronautical VHF Radio........................................................................................... 24 3.1 VHF Aeronautical Radio.................................................................................. 24 3.2 VHF-AM/UHF-FM Translator Unit.................................................................... 25 3.3 Hand-portable UHF IS Radio........................................................................... 26

4.0 INMARSAT B............................................................................................................. 28

5.0 NON-DIRECTIONAL BEACON SYSTEM .................................................................. 29

6.0 UHF REPEATER RADIO SYSTEM............................................................................ 30

Page 22: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 2 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Table of Contents (cont’d)

7.0 TANKER ESD ............................................................................................................ 32 7.1 Portable Radio ESD Transmitter ..................................................................... 32 7.2 Motorola GM950 ESD Receiver ...................................................................... 33 7.3 Power Supply.................................................................................................. 33

8.0 VHF/AM WEATHER TRANSCEIVER ........................................................................ 34 8.1 VHF/AM Weather Transceiver......................................................................... 34

TABLES Table 2.1 – Lifeboat Hand-held VHF Equipment.................................................................... 8 Table 2.2 – NAVTEX Message Categories .......................................................................... 20 Table 2.3 – GMDSS Equipment........................................................................................... 23 Table 2.4 – Aeronautical Radio Equipment.......................................................................... 27 Table 2.5 – Inmarsat B Equipment....................................................................................... 28 Table 2.6 – NDB Equipment ................................................................................................ 30 Table 2.7 – UHF Repeater Radio Equipment....................................................................... 31 Table 2.8 – Tanker ESD Equipment .................................................................................... 33

Page 23: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 3 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

1.0 INTRODUCTION Refer to:

• BON/1EA1204/INVSAT/000007: VHF Portable Transceiver

• BON/1EA1204/INVSAT/000008: SART, Radar Transponder

• BON/1EA1204/INVSAT/000009: EPIRB The five lifeboats are equipped with marine VHF radios, SART Radar Transponders (9.2GHz) and satellite Emergency Position Indicating Beacons (EPIRBs) (406MHz). Liferafts have integral satellite EPIRBs (406MHz) fitted. Additionally, three SART Radar Transponders (9.2GHz) are installed, two aft and one forward. The rescue boat is equipped with a marine VHF radio, one SART Radar Transponder (9.2GHz) and two sets of safety helmets with headsets are provided. Additionally, there are eight Motorola MTS 2000, portable VHF transceivers for use as required.

1.1 VHF Radios Equipment Details General Tag Numbers: Y-85SX-005A to 005F Private Channels: 10, may be extended to 40 Operation: Simplex and semi-duplex Modulation: G3EJN (phase) Antenna Impedance: 50Ω

Frequency Stability: ± 10ppm (spec vers ± 5ppm)

Temperature Range: -20°C to +55°C Nominal Power Supply: 13.2V dc Power Supply Variation: 12V dc (-10% to +30%) Power Consumption: Standby = 0.1A Transmit = 5A Receiver Frequency Range Simplex: 154.40 to 159.15MHz Frequency Semi-duplex: 159.00 to 163.75MHz

Sensitivity: 0.25µV PD at 12dB SINAD AF Output Power: 6W/4Ω Telephone Output: 0.5V RMS/200Ω Distortion: Less than 5% Canning Facilities: Flexible scanning programme with possibility for all international channels and 10 private channels Accessories: SELCALL decoder

Page 24: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 4 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Transmitter Frequency Range Simplex: 154.40 to 159.15MHz Frequency Special: 159.00 to 163.75MHz RF Output Power: 25W +0 to -0.5dB Reduced RF Output: 0.5 to 1W Distortion: Less than 5% The Sailor RT2048 VHF radiotelephone installed in each lifeboat is a compact, solid-state unit intended for ship-to-ship and ship-to-shore communication. Five sets have been installed in the lifeboats. The unit can operate in both simplex and semi-duplex mode. All 55 international and US VHF marine channels are included and the unit is provided with up to 10 private channels, selected as simplex or semi-duplex channels in the frequency band 154.4 to 163.75MHz. A dual-watch facility allows the operator to listen out on two channels simultaneously (the selected channel and a programmable preference channel – normally Channel 16). The backlit pushbutton keyboard has been provided with a quick-select channel, normally Channel 16. The radio can be operated on either 25W or 1W where two stations are in close proximity. The reduction in output power will improve communication quality. The 12W Audio-frequency (AF) power amplifier delivers 6W to a large built-in speaker and is provided with continuous turnstyle operation of SQ and AF level for optimum resolution. An LED readout provides channel number and other indications. Notes: (1) With simplex or semi-duplex mode of operation, the handset

keyswitch is depressed whilst the message is being delivered ending with the word ‘OVER’. The switch is then released allowing the other party to reply.

(2) Private channels include fishing and leisure channels as well as special channels allocated by post and telegraph authorities.

The ac power to each of the battery chargers in the two boats is 42V. This is a standard Safety of Life at Sea (SOLAS) voltage that is used for any equipment sitting outboard from the vessel. The power being fed to the radio battery charger is 230V. The radio is under the control of the Emergency Shutdown (ESD) system and will be disconnected if gas is detected onboard. For maintenance, refer to BON/1EA1204/INVSAT/000007: VHF Portable Transceiver.

Page 25: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 5 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

1.2 SART Radar Transponders (9.2GHz) Equipment Details Tag Numbers: Y-85SS-001A to 001I Frequency: X Band (3cm) (9.2 to 9.5GHz)

Temperature Range: Operating -20°C to +55°C Storage -30°C to +65°C

Radiated Power: >400mW eirp (+26dBm) Sweep Type: 12 sweep saw-tooth type Forward 7.5us ± 1ms Return 0.4us ± 0.1ms Starts with return sweep Receive Sensitivity: Better that -50dBm ERS Response Delay: Max 0.5ms Antenna Pattern: Horizontal polarisation Omni-directional radiation in the horizontal plane Greater than ± 12.5º elevation angle in the vertical plane Battery Capacity: 96 hours standby + 8 hours continuous operation when activated by a radar with 1kHZ prf at -20°C 4 years storage The SART transponders fitted to each of the lifeboats, liferafts and rescue boat are TronSart units manufactured by Jotron. The transponder units are watertight and designed to withstand a drop of 30m into water. The purpose of the SART is to provide a secondary alarm when search and rescue units are searching for a liferaft/lifeboat in distress. This is done with the help of the radar on a searching ship or helicopter. When the SART receives a radar signal, it will immediately start to transmit a number of sweeps covering the complete maritime 3cm radar band. These sweeps are detected on a radar screen and can pinpoint the location of a distressed vessel. Maximum signal distance to a ship will be about 10 nautical miles and about 30 nautical miles to a helicopter, dependent on the helicopter’s altitude. The TronSart unit is equipped with an LED and a built-in speaker to indicate that the unit is in operation. The LED will normally flash with a frequency of 1Hz to show that the unit has been activated. When a search and rescue unit is approaching, the internal speaker will sound each time the SART is hit by radar. A continuous sound from the loudspeaker indicates that the rescue vessel or aircraft is close by and is hitting the unit with a continuous radar signal. The primary alarm will usually be provided by an EPIRB or a distress call on VHF/HF radio. The SART should be activated immediately after the EPIRB has been started or by instructions from the rescue control centre. For maintenance, refer to BON/1EA1204/INVSAT/000008: SART, Radar Transponder.

Page 26: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 6 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

1.3 Satellite EPIRBs Equipment Details Tag Numbers: Y-85SE-001A to 001E Frequency: Lithium, 4-year service-life Housing: Polycarbonate Compass Safe Distance: 1.5m

Temperature Range: -20°C to +55°C

Operating Life: Minimum 48 hours at -20°C

SARSAT/COSPAS Transmitter

Frequency: 406.025MHz ±2ppm

Output Power: 5W ± 2dB Protocols: Maritime, serialised, radio call sign

Modulation: Phase modulation 1.1 ± 0.1rad Data Encoding: Bi-phase L

Short-term: ≤10-9

Medium-term: ≤10-9

Residual Noise: 3 x 10-9

Bitrate: 400b/s Antenna: Built-in, omni-directional

Homing Transmitter Frequency: 121.500MHz Output Power: Up to 100MW depending on model Modulation: A9, AM sweep tone from maximum 1600Hz down to minimum 300MHz Range 700Hz Sweep rate 2.5Hz Stability: 10ppm over temperature range Antenna: Built-in, omni-directional The purpose of an EPIRB is to provide an immediate alarm to the search and rescue authorities to indicate that a vessel is in distress. The COSPAS/SARSAT system was introduced in 1982 as a worldwide search and rescue system and provides full coverage of the earth’s surface with the help of a series of six satellites in polar orbit.

Page 27: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 7 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

The satellites will detect a signal from an activated EPIRB and transmit its details to a ground station called a Local User Transmitter (LUT). Once the signal is received by the LUT it is processed for location and is sent to a Mission Control Centre (MCC). The MCC sorts the data according to geographic search and rescue regions and distributes the information to the appropriate Rescue Co-ordination Centre (RCC). The RCC, in turn, takes the necessary action to initiate search and rescue activities. The EPIRB, when activated, transmits a uniquely coded signal providing the identity of the vessel in distress. Two frequencies are transmitted, an analogue 121.5MHz signal and a digital 406.25MHz signal. Both signals are received by satellite. The location of the distress signal can be determined by the change in doppler shift of the EPIRB frequency as the satellites pass over the beacon. A location accuracy of less than 5km can be obtained. The model of EPIRB fitted to each lifeboat is a Tron 40S. The Tron 40S is buoyant and is designed to automatically release and activate when the EPIRB and its bracket are submerged in the sea. The unit may also be activated manually by releasing it from its bracket. A red LED indicator and a built-in strobe light on the top of the EPIRB will flash with a frequency of 20 flashes per minute to indicate that the unit has been activated. To prevent undue expense in an expensive rescue operation, the MCC will initially contact the vessel or the person registered as a contact in the EPIRB register. Care must be taken not to activate the EPIRB unless in an emergency situation, in such cases the user will be held responsible. For maintenance, refer to BON/1EA1204/INVSAT/000009: EPIRB. The following table details the GMDSS equipment fitted to lifeboats.

Page 28: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 8 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Equipment Number Description

Y-85BB-005A to 005F Lifeboat/Rescue Craft Radio Battery No 1 to No 6

Y-85BC-005A to 005F Lifeboat/Rescue Craft Radio Battery Charger No 1 to No 6

Y-85AH-005A to 005F Lifeboat/Rescue Craft Radio Antennae No 1 to No 6

Y-85AH-005A to 005F Lifeboat/Rescue Craft VHF Marine Radio No 1 to No 6

Y-85RK-002A Fast Rescue Boat No 1 Headset

Y-85RK-002B Fast Rescue Boat No 2 Headset

Y-85RH-001 to 008 Portable VHF Transceiver No 1 to No 8 (Deck Crew)

Y-85RH-009 to 010 Portable VHF Transceiver No 9 to No 10 (CCR)

Y-85RP-005A to 005B Portable VHF Transceiver Charger (six slot) No 1 to No 2 (CCR)

Y-85SE-001A to 001E EPIRB No 1 to No 5

Y-85SS-001A to 001E SART No 1 to No 5 (Lifeboat)

Y-85SS-001F SART No 6 (Aft Liferaft)

Y-85SS-001G SART No 7 (Aft Liferaft)

Y-85SS-001H SART No 8 (FWD Liferaft)

Y-85SS-001I SART No 9 (Rescue Boat)

Table 2.1 – Lifeboat Hand-held VHF Equipment

2.0 AREA A3 GMDSS RADIO PLANT Refer to:

• BON/1EA1204/INVSAT/000006: Main Radio Plant

• BON/1EA1204/INVSAT/000020: Navtex Receiver

• BON/1EA1204/INVSAT/000011: Inmarsat C System All GMDSS vessels operating in A3 areas must carry the following minimum duplicated equipment:

• Two complete VHF installations (including Digital Selective Calling (DSC)), and either

• Two complete Inmarsat C systems and one MF radio system, or • One complete Inmarsat C system and one complete MF/HF radio system

(including a scanning DSC receiver and Narrow Band Direct Printing (NBDP) equipment)

Page 29: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 9 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

On Bonga, the majority of the equipment is installed in and around a four-bay radio console, complete with two gooseneck lights, located at the Incident Control Centre (ICC) Global Maritime Distress and Safety System (GMDSS) console. The equipment includes an MF/HF transceiver complete with telexing facility, an HC4500 HF control unit, an HA4525A aerial coupler complete with built-in dummy load, plus MF/HF/SSB Tx and Rx Antennae. A printer, telex terminal and weather fax Rx, for operation from the MF/HF/SSB Transceiver plus a Navtex Rx printer, complete with active antennae, are supplied for notification of weather and navigation warnings. Two sets of marine Sailor RT 4822 VHF-DSC radios, and two sets of VHF Marine Intrinsically Safe (IS) hand-portable radios, as part of the GMDSS equipment, are installed in the CCR.

THIS EQUIPMENT SHOULD ONLY BE OPERATED BY PERSONNEL WHO

HAVE ATTENDED SUITABLE GMDSS TRAINING.

The GMDSS equipment is set up such that it is normally powered via telecom Uninterruptible Power Supply (UPS) from the essential switchboard. In the case of this system failing, the system changes over to the emergency switchboard.

In the event of a complete ac power failure, the following equipment will be changed over to run from the GMDSS 24V battery:

• Navtex Antenna PSU Y-85RP-001

• Navtex Rx Printer Y-85SN-001

• Weather Fax Rx Y-85SW-001

• MF/HF Telex Terminal Y-85ST-001

• Printer Y-85SP-001

• MF/HF SSB Transceiver Y-85SN-001

• VHF/FM Radios Y-85SX-001B

• VHF/FM DSC Radio Y-85SX-001A

• Portable VHF Radio Y-85RH-009 (self-contained, no connection to 24V dc)

• Portable VHF Radio Y-85RH-010 (self-contained, no connection to 24V dc)

• Inmarsat C Y-85SI-002

• Inmarsat C Terminal Y-85SO-001

• Inmarsat C Printer Y-85SF-001

• GPS Display Unit Y-87SG-001

• DGPS Antenna Y-87AG-002

Ultimate back-up is provided by the Inmarsat ‘Mini-M’ compliant, portable satellite telephone terminal, held by the OIM. (Thrane and Thrane 40304A – Serial No 00310563).

Page 30: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 10 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

2.1 Sailor RT 4822 VHF-DSC Equipment Details Tag Numbers: Y-85SX-001A (DSC) and Y-85SX-001B Model Number: RT4822 VHF/DSC transceiver Location: CCR GMDSS Console

General Information Normal Channels: All international channels for 25kHz operation Up to 40 private channels Optional Channels: All international channels for 12.5kHz operation Up to 224 channels with up to 54 private channels Channel Spacing: 25kHz/optional 12.5kHz Frequency Range: 150.8MHz to 163.6MHz Operating Modes: Simplex/semi-duplex Modulation: G3EJN for telephony receiver G2B for DSC signalling Frequency Stability: ± 10ppm/opt ± 5ppm Aerial Connections: Standard 50Ω female, SO239 Temperature Range: -15°C to + 55°C Supply Voltage: 13.2V dc Supply Range: 10.8V dc to 15.6V dc Supply Current: Standby 0.14A Transmitter on 1.5A (low power) Transmitter on 5.0A (high power)

Receiver Sensitivity for 12dB SINAD: -119dBm or 0.25AF rated power Output 1: 4W/4Ω Output 2: 6W/4Ω Distortion THD: Below 5% Signal/Noise Ratio: Better than 40dB AF Response: -6dB/octave Spurious Emission: Below 2nW Spurious Response Attenuation: More than 70dB Intermodulation Attenuation: More than 68dB Co-channel Rejection: Better than -10dB Adjustment Channel Selectivity: More than 70dB Blocking: More than 90dBµV

Page 31: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 11 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

VHF/DSC Transmitter RF Output Power: High 25W + 0dB to -0.5dB Low 0.9W + 0.5dB to -1.0dB Adjustable Channel Power: Below -70dBc

Spurious Radiation: Below 0.25µW

Cabinet Radiation: Below 0.25µW AF Response: + 6dB/octave Distortion: Below 5% Signal/Noise Ratio: Better than 40dB

DSC Facilities DSC Operation: According to Rec ITU-R M.541-6 and Rec ITU-R M.689-2 DSC Protocol: According to Rec ITU-R M.493-7 Class A Navigator Interface: NMEA 0183, GGA, GLL, ZDA NMEA input current 8mA type

Symbol Error Rate: -119dBm or 0.25µV pd

Below 1* 102 at 1700Hz ±400Hz

Modulation: 1200baud ± 30ppm

Frequency Error: Below ± 1Hz Residual DSC-mod: Below -26dB

2.1.1 The VHF System The VHF system uses a limited number of frequencies called channels. The public system has 57 channels numbered 1 to 28 and 60 to 88. Each of these has a particular purpose, eg intership, ship-to-port or ship-to-shore. There are also several private channels. Four channels have special purposes:

• Channel 16 This is the GMDSS emergency channel. On receipt of a DSC-generated distress signal, the DSC VHF set will automatically tune to Channel 16.

• Channel 70 The DSC channel (refer to Paragraph 2.1.3).

• Channels 75 and 76 Used as guard band for distress Channel 16.

Page 32: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 12 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

2.1.2 Verbal VHF Communications All channels except Channel 70 are used for verbal communication. There are two types of channels, simplex and duplex. On simplex channels, both parties transmit and receive on the same frequency, therefore both parties cannot talk at the same time. When you have finished talking, say ‘over’ and release the Push to Talk (PTT) key. On duplex channels, both parties may transmit at the same time. Two different frequencies are used. To save power, release the handset PTT key except when talking. Note: Everybody with a VHF receiver can listen to your conversation, but it is

forbidden to use or pass on what is heard.

2.1.3 The DSC System The DSC system is a digital data transfer system that uses VHF Channel 70. The transmitter waits until the channel is free and then sends the data either to a designated address or to ‘all stations’, for example a DSC distress call. It is mainly used for getting in contact in order to establish verbal communication. For maintenance, refer to BON/1EA1204/INVSAT/000006: Main Radio Plant.

2.2 Sailor C4901 Marine VHF Remote Control Handsets Equipment Details Tag Numbers: Y-85RG-001A/B Manufacturer: SP Radio Power Supply: + 12V dc Fuse: 630mA There are two remote control handsets for the Marine Sailor C4901 VHF radio, one located on the CCR console and the other in the Marine Supervisor’s office. The remote Sailor C4901 VHF control handsets are connected directly to the transceivers via local Junction Boxes (JBs). Both control units can be connected with or without DSC. A remote speaker may be connected to remote hooks, connection box H4991 or to the WP SPARC-bus connection box. For maintenance, refer to BON/1EA1204/INVSAT/000006: Main Radio Plant.

DO NOT CONNECT THE SPIRAL CABLE FOR THE HANDSET DIRECTLY TO

THE TRANSCEIVER. THE SPIRAL CABLE FOR THE INTELLIGENT HANDSET MUST BE CONNECTED TO THE HANDSET HOOK, OTHERWISE

THE TRANSCEIVER MAY ACTIVATE DISTRESS.

Page 33: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 13 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

2.3 Sailor N420 24V/12V DC Voltage Regulator Equipment Details Tag Numbers: Y-85RP-002A Manufacturer: SP Radio Model: N420 Input Voltage: 21.6 to 31.2V dc Nominal +24V dc Output Voltage: 12V dc Output Current: 8A Operating Temperature Range: 15°C to 55°C Locations: GMDSS console Foxboro console Voltage Regulator Y-85RP-002A provides a supply for VHF/FM Radio (DSC) Y-85SX-001A, whilst Y-85RP-002B provides power to VHF/FM Radio Y-85SX-001B. For maintenance, refer to BON/1EA1204/INVSAT/000006: Main Radio Plant.

2.4 Sailor System 4000 GMDSS Equipment Details Tag Numbers: Y-85RP-002B Manufacturer: SP Radio Model: N420 Input Voltage: 21.6 to 31.2V dc Nominal +24V dc Output Voltage: 12V dc Output Current: 8A Operating Temperature Range: 15°C to 55°C Locations: GMDSS console Foxboro console (CCR)

2.4.1 Propagation of MF and HF Radio Waves MF/HF radio communications provide a medium and long-range service. The 1.6 to 4MHz marine band is intended primarily for coastal operation beyond normal VHF communication range. A reliable range of more than 150 nautical miles can be expected in most areas in daytime, and more at night. Propagation of the radio waves in this band is mainly by ground waves, ie the waves from the transmitter aerial follow the earth’s curvature to the receiver aerial. The HF range of 4 to 30MHz can provide communications for hundreds or even thousands of nautical miles. The long range is provided by sky waves reflected from the ionosphere. Propagation of the radio waves depends on a number of factors such as frequency, time of day, time of year and solar activity.

Page 34: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 14 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

The channels allocated to the maritime mobile service in the HF range are divided into a number of bands: 4, 6, 8, 12, 16, 18, 22 and 25MHz to allow a suitable frequency band to be selected for communication dependent on distance and time of day.

2.4.2 Radio-telephony The mode of emission used for telephony transmissions in the marine bands is SSB (J3E). On the international distress frequency, 2182kHz, compatible AM (H3E) may be used in addition for communication with non-GMDSS ships. AM mode is also used when receiving broadcasts. The frequencies for radiotelephone distress traffic in the HF bands are 4125kHz, 6215kHz, 8291kHz, 12290kHz and 16420kHz. Working frequencies for public correspondence with coast stations are arranged in pairs for duplex/semi-duplex operations. For the HF band, these channels are allocated numbers by the International Telecommunications Union (ITU) on an international basis. In addition, a number of simplex frequencies are available in each band for ship-to-ship communication.

2.4.3 Radiotelex Marine telex is also referred to as Narrow Band Direct Printing (NBDP). Due to the narrow bandwidth of the transmissions, a longer range may be expected compared to radio-telephony. The frequencies for radiotelex distress and safety traffic are 2174.5kHz, 4177.5kHz, 6268kHz, 8376.5kHz, 12520kHz and 16695kHz. Working frequencies for public correspondence with coast stations are arranged in pairs for duplex/semi-duplex operations. For the HF band, these channels are allocated numbers by ITU on an international basis. In addition, a number of simplex frequencies are available in each band for ship-to-ship communication.

2.4.4 Digital Selective Calling DSC is an automatic calling system that allows a specific station to be contacted and made aware that another station wishes to communicate with it. In addition to calls to specific stations, the system can also be used to call all ships and groups of ships. This is of significant use for DSC distress alerting. DSC is an alerting signal only and the communication that follows the call is made on an appropriate frequency band using radio-telephony or radiotelex. The frequencies for DSC distress and safety calling are 2187.5kHz, 4207.5kHz, 6312kHz, 8414.5kHz, 12577kHz and 16804.5kHz. Calling frequencies for public correspondence with coast stations are arranged in pairs and both international and national frequencies are assigned. In addition, the frequency 2177kHz may be used for ship-to-ship calling. With the built-in DSC/telex modem and optional single channel or scanning DSC watch receiver, the equipment forms an ideal system for MF or MF/HF GMDSS installations. The equipment consists of a compact transceiver control unit, a fully remote controlled transceiver and an automatic antenna-tuning unit.

Page 35: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 15 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

The microprocessor-controlled antenna unit automatically matches the impedance of antennae between 7 and 18m in length and requires no pre-setting at the installation. The typical tuning time is 0.1 to 0.5s. The unit is designed for outdoor installation and may be located up to 100m from the transceiver. The transceiver unit contains all receiver and transmitter circuitry. The fully protected, solid-state 250W power amplifier, cooled by a temperature controlled fan, matches a 50Ω antenna system, but is normally used in connection with the antenna unit. All marine bands are covered together with coverage across frequencies between 1.6 and 30MHz. The combined DSC and telex modem contains two demodulators, one connected to the optional built-in watch receiver for continuous DSC watch, the other connected to the traffic receiver for telex or DSC use. The watch receiver may be either a 2187.5kHz, single-channel receiver or a six-channel, scanning receiver, dependent on whether the equipment is intended for GMDSS MF or MF/HF installations. The control unit is for operation of radio-telephone as well as DSC functions. Use of the equipment is simple, logical and straightforward. The most frequently used functions are reached by simple key entries. Radio operation is provided with main emphasis placed on station/channel operation. DSC operation is based on the use of soft keys. Guiding texts are provided in:

• BON/1EA1204/INVSAT/000006: Main Radio Plant

• BON/1EA1204/INVSAT/000020: Navtex Receiver

• BON/1EA1204/INVSAT/000011: Inmarsat C System The large display is able to show the contents of a complete call on one screen. An additional control unit may be connected. A GMDSS telex facility is added by connecting a keyboard and a printer to the control unit. Basic telex operations are made very simple in this manner, by using the keyboard function keys for selecting telex distress frequencies and telex control functions. In addition a PC may be connected to the transceiver unit, providing automated telex facilities. With the ac power supply installed in the transceiver unit, the equipment may be supplied from 220 to 240V ac main or emergency supplies with an automatic switchover facility to 24V dc supply, should the ac supply fail for any reason. A battery charger extension enables the ac power supply to be utilised as a battery charger. It has sufficient capacity to fully charge (80% capacity) a 200Ah battery in less than 10 hours, when the equipment is in the receive condition. Float charging maintains the battery fully charged. The IE characteristic allows batteries of any capacity rating to be charged. For maintenance, refer to BON/1EA1204/INVSAT/000006: Main Radio Plant.

Page 36: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 16 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

2.5 Sailor HC 4500 MF/HF Telex Control Unit Equipment Details Tag Number: Y-85SC-001 Manufacturer: SP Radio Console Model Number: DT 4646E Printer Model Number: H1252 The GMDSS radiotelex transmitter is used for handling transmissions/reception of telex messages over radio. The terminal consists of a printer, a keyboard and a display console connected to the transceiver control unit, which provides the interface to the DSC/telex modem located in the transceiver unit. The keyboard is equipped with an affixed template for function keys and indicator lamps. Radiotelex supports worldwide ship-to-ship, ship-to-shore and shore-to-ship communication. Ship and coast stations have unique call codes; radiotelex supports both 4 and 5-digit cell calls, and 9-digit Maritime Mobile Ship Identification (MMSI) numbers. For maintenance, refer to BON/1EA1204/INVSAT/000006: Main Radio Plant.

2.6 Sailor BP 4680 Battery Panel Equipment Details Manufacturer: SP Radio Model: N1674/A

High-voltage Alarm: 29.5V ±2%

Low-voltage Alarm: 23.5V ±2% ac Alarm: Selectable between relay contact

Voltmeter: +10V to +40V±4%

Ammeter: ±200 Amp With the ac power supply installed in the transceiver unit, the equipment may be supplied from the 240V ac main or emergency supplies with automatic switchover to 24V dc supply in the absence of an ac supply voltage. The battery charger enables the ac power supply to be utilised as a 24V dc power source. The battery charger has the capacity to charge a 200Ah battery to 80% capacity in less than 10 hours when the equipment is in the receive condition. Float charging maintains the battery in a fully charged condition at all times. The battery panel is also used for monitoring the accumulator battery of the reserve supply arrangement for the radio installations. Battery voltage and current are displayed on digital panel meters, and visual and audible alarms are incorporated for warning of high/low battery voltage and failure of ac power supply. The panel contains alarm lamps for indication of ac failure, mute, dimmer and test functions. For maintenance, refer to BON/1EA1204/INVSAT/000006: Main Radio Plant.

Page 37: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 17 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

2.7 Inmarsat C

2.7.1 Antenna Equipment Details

Manufacturer: Thrane & Thrane Model: TT3005M Operating Frequencies: Receive – 1525.0 to 1559.0MHz Transmit – 1625.5 to 11646.5MHz GPS – 1576.42MHz Signal Amplification: 45dB for Inmarsat C and GPS The tube-mounted TT-3005M antenna is a powerful, lightweight design, approved for use with the TT-3020C Inmarsat C transceiver for transmission of messages up to 32kB. The TT-3005M antenna is fully GMDSS compatible and is designed to operate in weather extremes of up to 200kph wind speed, 100mm/hr precipitation and an ambient temperature range of -35°C to 55°C. Installation can be up to 100m from the transceiver using a single coax cable and offers troublefree operation down to -15° of elevation.

2.7.2 Transceiver Equipment Details Tag Number: Y-85SI-002 Manufacturer: Thrane & Thrane Model: TT3020C Capsat®

Operating Frequencies: Receive – 1525.0 to 1559.0MHz Transmit – 1660.5MHz GPS – 1595.42MHz Data Rate: 600bps Storage: Flash – 512kbyte SRAM – 256kbyte The TT-3020C transceiver is fully compliant with the latest Inmarsat C specifications for SOLAS/GMDSS, and provides fast and reliable connections to any fax or data terminal and/or directly to and from another Capsat® installation. With integral GPS through the TT3005M antenna, the transceiver has dual Inmarsat C and GPS capability, and can be used to provide data and position reporting to multiple destinations at user-defined intervals. All Inmarsat communication modes are supported including telex, X-25, e-mail and mobile-to-land fax services in addition to the standard PU/PA programming formats. Advanced programming formats with multiple Data Network Identifiers (DNIDs), independent reporting timers and global ocean area pre-programming are also supported.

Page 38: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 18 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

2.7.3 Message Terminal Equipment Details Tag Number: Y-85ST-001 Manufacturer: Thrane & Thrane Model: TT-3606E Message Terminal Processor: 386SX – 40MHz RAM: 2MB Flash Disk: 2MB Display: 10.4in Colour TFT Flat-panel, 640 x 480 Floppy Drive: 3.5in Power Source: 10 to 32V floating dc Power Consumption: 20W maximum – 13W typical (approximate) Fuse: Internal automatic recovering poly-fuse The TT3606E Message Terminal forms an integral part of the Inmarsat C GMDSS system located at the ICC console in the CCR, and is complemented by a TT-3601E keyboard.

2.7.4 Hard Copy Printer Equipment Details Tag Number: Y-85SF-001 Manufacturer: Thrane & Thrane Model: TT-3608A Hard Copy Printer The TT3608A Hard Copy Printer forms an integral part of the Inmarsat C GMDSS system located at the ICC console in the CCR, and connects to the transceiver by a standard 1.5m cable, or a special, low impedance cable for locating up to 20m away. In case the printer and the message terminal are switched off, the transceiver will hold incoming messages in its internal memory for up to 48 hours for hard copying later. The printer is fitted with a paper-roll stand, which will enable the printer to signal advance warning when the paper-roll is almost at an end.

2.7.5 Remote Alarm Equipment Details Manufacturer: Thrane & Thrane Model: TT-3042C Remote Alarm Compliance: SOLAS/GMDSS CN-114 The TT3608A Hard Copy Printer forms an integral part of the Inmarsat C GMDSS system located at the ICC console in the CCR, and allows direct transmission of distress calls from the alarm box, including updated position data.

Page 39: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 19 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

The unit includes a flashing LED indicator and an audio alarm to ensure that a distress/Enhanced Group Call (EGC) alarm is both seen and heard. The Mobile Earth Station (MES) LED indicates communication errors detected in the transceiver, such as a high bulletin board error rate, printer error or antenna current too high. The alarm unit is connected to the transceiver by a power and signal cable, and may be located up to 100m away. Support for remote visual indication of external errors is included.

2.8 Radiotelex DT 4646 Software Installation The DT 4646E data terminal is delivered with a total of four programmes as follows: • CAPSAT Version 2.22 • CAPSAT Version 3.21 • Radio Telex Version 1.41 for Sailor program 2000. English version • Telex-over-radio Version 2.20 for Sailor program 4000. English and Russian

versions

2.9 ICS Electronics Nav 5 Navtex Receiver Equipment Details Tag Number: Y-85SN-001 Manufacturer: ICS Electronics Ltd Model: NAV5 Operating Voltage: 9V to 30V dc Power Consumption: 1.5W (standby) 2.5W (printing) Receive Frequency: 518kHz, 4209.5kHz Frequency Stability: ± 10Hz Antenna Input: 50Ω Printer Paper: Thermal, 40 characters per line, 80mm wide x 20m Navtex is a method of transmitting navigational warnings and weather forecasts from designated coastal radio stations. All English-language transmissions are made on 518kHz and each station is allocated several time slots during the day when it is permitted to transmit. These are normally at 4-hourly intervals. The only exceptions to this are gale warnings and search and rescue messages, which may be transmitted at any time. Reception of Navtex is normally limited to an area of 200 to 300-mile radius around each transmitting station, although considerably greater ranges may be possible at night. The Navtex should be set up to provide only information and messages categories from stations relevant to the area and particular circumstances. Unwanted station signals and messages may be deselected. If you do not know which stations cover your area, start by leaving all stations selected, you will soon find which stations are relevant by the signals that you receive. Currently there are no Navtex stations in the region. For maintenance, refer to BON/1EA1204/INVSAT/000020: Navtex Receiver. Table 2.2 describes the various Navtex message categories.

Page 40: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 20 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Navtex Category Description

A Navigation warnings

B Meteorological warnings

C Ice reports

D Search/rescue information and pirate attack warnings

E Meteorological forecasts

F Pilot service messages

G DECCA information

H LORAN information

I OMEGA information

J SATNAV information

K Other electronic Navaid information

L Navigational warnings additional to Category A

V Amplifying details to navigational warnings initially broadcast under Category A

Z No messages on hand

Note: International regulations prevent message categories A, B, D and L from being de-selected.

Table 2.2 – NAVTEX Message Categories

2.10 ICS Electronics FAX 4 Weather Fax Receiver Equipment Details Tag Number: Y-85SW-001 Manufacturer: ICS Electronics Ltd Model Number: FAX 4 Operating Voltage: 10 to 16V dc Power Consumption: 1.5W The FAX 4 is a weather facsimile system. The unit is connected into a short-wave SSB receiver, tuned to a weather facsimile station with the output connected to a standard inkjet printer. Each facsimile station generally transmits simultaneously on several radio frequencies so that the optimum frequency can be found no matter what the time of day or the season.

Page 41: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 21 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Not all of the transmissions from the worldwide group of facsimile stations are continuous. In between map transmissions there may be a ‘tuning tone’ holding the channel, or the channel may carry other services such as Radio Teletype (RTTY). Some stations drop the transmission carrier completely leaving a dead channel. It is useful to programme all the frequencies used by each station into the memories of the radio’s channels. This will enable the user to switch rapidly and readily select the frequency to provide the best signal. The unit has an automatic frequency tracking feature allowing the printing of charts, even when the receiver tuning is in error by as much as 200Hz. For optimum results however, the receiver should be as accurately tuned as possible. Indicators:

• Black – Shows that a black part of the map is being received

• White – Shows that a white part of the map is being received

• Power – ON, also flashes to indicate remote timer operation is active

• On-line – Printer is available for printing, flashes when printing

• Error – Printer fault To aid tuning, the ‘Black and White’ level indicators display the percentage of ‘Black and White’ tones received. For a list of worldwide weather facsimile stations and the frequencies that they operate on, refer to:

• BON/1EA1204/INVSAT/000006: Main Radio Plant

• BON/1EA1204/ INVSAT/000020: Navtex Receiver

• BON/1EA1204/INVSAT/000011: Inmarsat C System The best source of details of transmission times of marine weather information worldwide is the Admiralty List of Radio Signals (Volume 3). This document provides lists of transmitting stations, schedules, frequencies and areas of coverage and content of each map. It is updated weekly through the Admiralty ‘Notices to Mariners’ (NOMAR) bulletins. Abbreviated information regarding weather facsimile transmissions may also be found in nautical almanacs. The Klingenfuss ‘Guide to Fax Radio Stations’ lists details of marine, aviation and press agency facsimile transmissions worldwide. For maintenance, refer to: BON/1EA1204/INVSAT/000006: Main Radio Plant.

Page 42: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 22 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

2.11 Mini-M The Inmarsat Mini-M satellite telephone system enables users to transmit voice calls, e-mail and fax from and to virtually anywhere in the world from Mini-M compliant portable devices. Equipment Details Serial Number: 00310563 Manufacturer: Thrane & Thrane Model: TT3060A Capsat® Mobile Telephone Antenna: Directional RHCP Patch Array +/- 15° beam width Transmit Frequencies: 1626.5 to 1660.5MHz Receive Frequencies: 1525.0 to 1569.0MHz Spacing: 1.25kHz Operating Temperature: -25°C to 55°C Power Supply: 10.5 to 18.5Vdc Power Requirements: Listen – 380mW Talk – 8W Fax/data – 20W The TT-3060A telephone is intended for deployment in the event of a total telecom system failure, or in emergencies, and is held in the OIM’s office. Power is supplied from a built-in NiCd battery, providing for approximately 48 hours standby time, 2.5 hours talk time and 1 hour fax/data time. An optional solar panel power supply can be connected to a dedicated interface adjacent to the charger input. Operation is from the handset like a normal GSM phone and the set incorporates a two-wire Dual Tone Multi-frequency (DTMF) phone interface for connecting a fax machine, and a standard RS232 data input. The flat panel antenna can be sited up to 200m away from the telephone allowing for the best reception to be achieved. Table 2.3 contains a list of GMDSS equipment onboard.

Page 43: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 23 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Equipment Number Description Location

Y-85AH-001A FWD VHF Antenna FWD Area Light Tower

Y-85AH-001C No 1 VHF/FM Antenna E Deck Top

Y-85AH-001D No 1 VHF/FM Antenna (DSC) E Deck Top

Y-85AH-001E No 2 VHF/FM Antenna E Deck Top

Y-85AH-003A HF SSB Tx Antenna E Deck Top

Y-85AU-003 FWD UHF Antenna FWD Area Light Tower

Y-85AH-003B MF/HF SSB Rx Antenna E Deck Top

Y-85AN-001 Navtex Antenna E Deck Top

Y-85RP-001 Navtex Antenna PSU CCR on B Deck

Y-85SL-001 Loudspeaker CCR on B Deck

Y-85ST-001 MF/HF Telex Terminal CCR on B Deck

Y-85RP-002A VHF 24V/12V dc PSU CCR on B Deck

Y-85RP-002B VHF 24V/12V dc PSU TER on E Deck

Y-85SP-001 Telex Printer CCR on B Deck

Y-85SW-001 Weather FAX Rx CCR on B Deck

Y-85SW-002 Weather FAX Rx Printer CCR on B Deck

Y-85SM-001 GMDSS Battery Monitor CCR on B Deck

Y-85SN-001 Navtex Rx Printer CCR on B Deck

Y-85RG-001A Remote Handset CCR on B Deck

Y-85RG-001B Remote Handset Marine Supervisor’s Office

Y-85SX-001A VHF/DSC Marine Radio (DSC) CCR on B Deck

Y-85SX-001B VHF Marine Radio TER on E Deck

Y-85RC-001 MF/HF Control Unit CCR on B Deck

Y-85BC-003 GMDSS Battery Bank Charger (Radio Plant)

E Deck

Y-85BC-001 Hand-portable Battery Charger Forward Safe Refuge

Y-85RP-005C 6-slot Hand-portable Battery Charger

CCR on B Deck

Table 2.3 – GMDSS Equipment

Page 44: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 24 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Equipment Number Description Location

Y-85BB-003 GMDSS Battery Bank (Radio Plant)

E Deck

Y-85RH-009 VHF Marine IS Hand-portable CCR on B Deck

Y-85RH-010 VHF Marine IS Hand-portable CCR on B Deck

Y-85RH-014 VHF Marine IS Hand-portable Forward Safe Refuge

Ser No 00310563 ‘Mini-M’ Portable Satellite Telephone

OIM’s Office

Table 2.3 – GMDSS Equipment (cont’d)

3.0 AERONAUTICAL VHF RADIO Refer to: BON/1EA1204/INVSAT/000013: Aeronautical Radio. The Aeronautical VHF Radio System consists of:

• VHF AM transceiver units (118 to 137MHz) complete with rack mounting, microphone and antenna

• Two UHF FM/VHF AM translator units (console/rack-mounted) complete with antennae

• Two IS UHF FM hand-portables with standard accessories and remote speaker microphones

• Two single-slot battery chargers

• Two VHF AM remote control units complete with microphones The system has been configured such that the UHF FM hand-portables are able to talk to aircraft on VHF AM via the translator. This system is used because IS AM hand-portables are generally not available. UHF hand-portables also suffer less from interference when used around fluorescent lighting and high-voltage power circuits.

3.1 VHF Aeronautical Radio Equipment Details Transceivers: Y-85RN-002A/B Remote Control Units: Y-85RG-002A/B Manufacturer: Jotron Model Number: TR-7510 Transceivers: TR-7410 Remote Control Units: Audio Remote Control (ARC) VHF/AM Ground-to-air Receiver: RA-7202

Page 45: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 25 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

VHF/AM Transmitter: TR-7410 Frequency Range: 118 to 137MHz Channel Separation: 25kHz/8.33kHz (selectable) Location: CCR and Helideck Briefing Room Each transceiver consists of one separate transmitter module, one power supply module and one receiver module. The JOTRON RA-7202 VHF/AM is an advanced synthesised AM ground-to-air receiver. The ARC unit allows control of the transceivers located in the TER. Each ARC controls one transceiver. The ARC located in the GMDSS console controls the transceiver Y-85RN-002A, and the ARC located in the heli-reception room controls transceiver Y-85RN-002B.

The ARC unit allows extension of the PTT signals for a transmitter/receiver. One line pair is used for each transceiver and contains both PTT and audio in both directions. Built-in test equipment makes it easy to pinpoint faults to specific parts of the receiver. Fault diagnostics may be carried out from the front panel or the remote control. One unit is located in the CCR with another located in the helideck briefing room. When the module is switched on, the receiver display will first show ‘RA-7202’, then the version number, the serial number and finally a display of the operating frequency. The operating frequency is shown with six digits according to the International Civil Aviation Organisation (ICAO) standard, eg 126.100. The user can step through the main menu by pressing the ‘ENTER’ button and steps through the different submenus by use of the ‘UP’ and ‘DOWN’ buttons. In a similar manner to the receiver, when the transmitter is switched on, the unit will display ‘TA-7450’ then the version number, the serial number and finally a display of the operating frequency. The operating frequency is shown with six digits according to the ICAO standard, eg 126.100. The user can step through the main menu by pressing the ‘ENTER’ button and step through the different submenus by use of the ‘UP’ and ‘DOWN’ buttons. For maintenance, refer to: BON/1EA1204/INVSAT/000013: Aeronautical Radio.

3.2 VHF-AM/UHF-FM Translator Unit Equipment Details Tag Numbers: Y-85RI-001A/B Manufacturer: VHF-AM Radio – ICOM UHF-FM Radio – Motorola Model Numbers: VHF-AM Radio – IC-200 UHF-FM Radio – GM350 Location: TER For maintenance, refer to: BON/1EA1204/INVSAT/000013: Aeronautical Radio.

Page 46: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 26 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

3.3 Hand-portable UHF IS Radio Equipment Details Tag Numbers: Y-85RH-011A/B Manufacturer: Motorola Model Number: GP900, H01RCC9AN3AC IP Rating: IP54 Location: FPSO The UHF FM hand-portables are able to talk to aircraft on VHF/AM via the translator. This system is used because IS AM hand-portables are generally not available. UHF hand-portables also suffer less from interference when used around fluorescent lighting and high-voltage power circuits. The controls on the GP900 handset are as follows: • On/off/volume control to turn the radio on/off and adjust the loudspeaker volume • A channel selector switch • A three-colour indicator which functions as follows:

Colour Flash Rate Function

Red Continuous Radio transmitting

Red Flashing, when transmitting

Low battery

Red Flashing, when receiving Channel busy

Yellow Fast flashing Individual call reminder

Yellow Slow flashing Group call reminder

Green Flashing Scanning on

Red, Yellow, Green Alternating Hardware error • Emergency button • Three-position programmable switch • Call button 1 • Monitor button • Transmit key Push to Talk (PTT) • Keypad with function buttons

Page 47: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 27 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

3.3.1 CENELEC Approval The British Approval Service for Electrical Equipment in Flammable Atmospheres (BASEEFA) approves a series of models covering VHF and UHF bands for use in hazardous environments. The approval rating for these models is EEx ib IIC T4. CENELEC models are marked with the approval number EX94C2258X. The following points must be noted to maintain approval:

• Only Motorola batteries with part number NTN7148 may be used in a hazardous environment. Radio and battery are marked with a blue spot to aid identification

• Battery charging must only take place in non-hazardous areas

• Users are warned that batteries should not be rubbed or cleaned with solvents to avoid any risk of ignition due to the build-up of electrostatic discharges

• When the radio is used in a hazardous area, it is recommended that either the protective cover for the universal connector or an approved accessory is fitted

• No audio accessories may be connected to these radios unless they are approved for use with these radios

• An antenna with damaged insulation or with a missing end cap must not be used in a hazardous environment. It must be repaired or replaced

For maintenance, refer to: BON/1EA1204/INVSAT/000013: Aeronautical Radio. Table 2.4 contains a full list of equipment included in the Aeronautical Radio System.

Equipment Number Description Location

Y-85AH-004A VHF/AM Dipole No 1 E Deck Top

Y-85AH-004B VHF/AM Dipole No 2 E Deck Top

Y-85AH-004C VHF/AM Dipole for Translator No 1

E Deck Top

Y-85AH-004D VHF/AM Dipole for Translator No 2

E Deck Top

Y-85AU-002A UHF Dipole for Translator No 1 E Deck Top

Y-85AU-002B UHF Dipole for Translator No 2 E Deck Top

Y-85RN-002A Aeronautical VHF Radio No 1 TER on E Deck

Y-85RN-002B Aeronautical VHF Radio No 2 TER on E Deck

Y-85RG-002A Aeronautical VHF Remote Control Unit No 1

CCR on B Deck

Y-85RG-002B Aeronautical VHF Remote Control Unit No 2

Helicopter Briefing Room

Y-85RH-011A UHF (IS) Hand-portable Radio No 1

Helicopter Briefing Room

Table 2.4 – Aeronautical Radio Equipment

Page 48: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 28 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Equipment Number Description Location Y-85RH-011B UHF (IS) Hand-portable Radio

No 2 Helicopter Briefing Room

Y-85RI-001A VHF-AM/UHF-FM Translator No 1

TER on E Deck

Y-85RI-001B VHF-AM/UHF-FM Translator No 2

TER on E Deck

Table 2.4 – Aeronautical Radio Equipment

4.0 INMARSAT B Equipment Details Tag Number of Main Control Unit: Y-85DC-001A Manufacturer: NERA MCU Model Number: QUFC 911 901-2 Antenna Model: Saturn B Handset Model Number: QDGS 911 903 Inmarsat B Distress Alarm Unit: QUFC 911 910-2 Power Supply Unit: QUFC 911 903-2B Refer to BON/1EA1204/INVSAT/000010: Inmarsat B System. The Inmarsat B System consists of a stabilised standard B Inmarsat terminal, Class 1 GMDSS, a display unit complete with keyboard, a telephone handset in the Central Control Room (CCR), telex terminal and a printer. A ‘Distress’ Alarm button is included for use during an emergency when other forms of communication have failed. It is planned to add a digital multiplexer/bandwidth manager to the Inmarsat B system to allow the use of several 8kb/s CELP algorithm VF channels plus some data for use in the event of the main communications link failure. For maintenance, refer to BON/1EA1204/INVSAT/000010: Inmarsat B System. Table 2.5 contains a full list of equipment included in the Inmarsat B System.

Equipment Number Description Location Y-85AA-001 Inmarsat B Stabilised Antenna E Deck Top Y-85DP-001 Inmarsat B Telex Printer CCR on B Deck Y-85DB-001 Inmarsat B Termination Box CCR on B Deck Y-85DC-001A Inmarsat B Main Control Unit CCR on B Deck Y-85DC-001B Inmarsat B Telex Terminal CCR on B Deck Y-85DD-001 Inmarsat B Handset CCR on B Deck Y-85RP-004A Inmarsat B PSU No 1 CCR on B Deck Y-85RP-004B Inmarsat B PSU No 2 CCR on B Deck Y-85DE-001 Inmarsat B Distress Alarm Unit CCR on B Deck

Table 2.5 – Inmarsat B Equipment

Page 49: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 29 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

5.0 NON-DIRECTIONAL BEACON SYSTEM Equipment Details Tag Number: Y-85SZ-001 Manufacturer: Southern Avionics Company Model: SA 100 Output power: Up to 100W Input power: 180W Frequency: 190 to 535kHz (switch selectable in 500Hz increments) Keyer: 95 DIP switch programmable dot spaces Dot space adjustable from 63 to 166ms

Audio line input: Balanced 600Ω ± 20% -17dBm nominal Will accept -28dBm to +5dBm Modulation: 400Hz and 1020Hz (selectable) Refer to BON/1EA1204/INVSAT/000016: Helicopter Non-directional Beacon. A Non-directional Beacon (NDB) system for helicopters is installed in the TER on E Deck. The system consists of dual transmitters operating on a frequency between 190 and 535kHz. An automatic transfer unit has been included to change from one transmitter to another in the event of a failure. Between the transmitters and the helipad long wire antenna is an antenna coupler, which acts as an automatic tuning unit to keep the antenna in tune with transmitters. The NDB consists of an AM transmitter with an adjustable output power of up to 100W. The transmitter uses switching technology in the power amplifiers and regulator modules. The exciter portion consists of a crystal controlled 190 to 535kHz synthesiser, a dual tone 1020 or 400Hz generator, a DIP switch programmable morse code keyer and a monitor circuit. A separate monitor receiver provides an alarm and operates a set of contacts if the transmitter should fail or cease modulating whilst in service. A remote control unit allows the CCR to turn the NDB on or off without causing the monitor alarm to operate.

POTENTIALLY LETHAL LEVELS OF VOLTAGE ARE PRESENT WITHIN THE TRANSMITTER. EXTREMELY HIGH LEVELS OF RF VOLTAGE ARE

PRESENT WITHIN THE COUPLER WHEN RF INPUT IS APPLIED. HIGH VOLTAGES CAN BE DEADLY.

Page 50: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 30 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

For maintenance refer to BON/1EA1204/INVSAT/000016: Helicopter Non-directional Beacon. Table 2.6 contains a full list of equipment included in the NDB system.

Equipment Number Description Location

Y-85RS-001 NDB/miscellaneous cabinet TER on E Deck

Y-85AH-006 NDB helipad antenna E Deck Top

Y-85AH-007 NDB monitor antenna E Deck Top

Y-85SM-002 NDB monitor CCR on B Deck

Y-85SK-001 NDB remote control unit CCR on B Deck

Y-85SZ-001 NDB dual transmitter TER on E Deck

Y-85SA-001 NDB antenna coupler Helideck

Table 2.6 – NDB Equipment

6.0 UHF REPEATER RADIO SYSTEM Equipment Details UHF FM Hand-portable Tag Numbers: Y-85RH-021 to 046 Y-85RH-012 (Stores Crane UHF Hand-portable) Y-85RH-016 (FSR UHF Hand-portable) Manufacturer: Motorola Model Number: 1300mAh Duty Cycle: 9.5 hours Frequency Range: 403 to 407MHz Approval: CENELEC Eex ib IIC T4

UHF Base Station Tag Number: Y-85Rn-007A to 007J Manufacturer: Motorola Model Number: MTR 2000 Location: TER

Page 51: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 31 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

UHF RF Distribution Unit Tag No: Y-85RB-007A to E Manufacturer: INVSAT Power supply: 230V, 50Hz Consumption: 70W (max) Operating temperature: 0 to 40°C Refer to BON/1EA1204/INVSAT/000012: Onboard UHF System. The UHF radio system is a five-repeater system provided by Motorola MTR2000 located in the TER on E Deck. The system consists of:

• Five INVSAT MSU1000 UHF RF distribution units

• Ten Motorola UHF Base Stations (5-channel fully redundant)

• A distributed UHF antenna system covering the entire vessel

• Twentyfive Motorola GP900 UHF hand-portable radios The MSU1000 is designed to automatically switch between a main and standby transceiver. The MSU1000 controls the switching by direct connection to the transceivers auxiliary control ports, an RF distribution shelf is also used to combine and route the RF signals from the two transceivers to a single antenna. The MSU has a direct connection to the RF distribution shelf. The MSU also incorporates an auto-changeover system to switch over the system every 24 hours to allow both base stations to have equal on air use. The Motorola MTR2000 Base Station/Repeater provides analogue conventional and trunking capabilities in a reliable, software-controlled design. An innovative modular design and microprocessor-controlled Station Control Module (SCM) allows for superior station flexibility and simplified system upgrades. For maintenance refer to BON/1EA1204/INVSAT/000012: Onboard UHF System. Equipment Number Description Y-85RB-007A to E MSU1000 No 1 to No 5 Y-85RN-007A to J MTR2000 No 1A to No 5A

MTR2000 No 1B to No 5B Y-85RX-007A to G COAX relay Y-85RM-007A to E Power monitor Y-85RI-007 Tx combined Y-85RR-007 Rx multicouple Y-85AU-001 UHF antenna Y-85AU-003 UHF antenna (FSR) Y-85RG-007 CENTRO plus radio controller (CCR CCC) Y-85RG-007 CENTRO plus radio controller (CCR GMDSS)

Table 2.7 – UHF Repeater Radio Equipment

Page 52: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 32 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Equipment Number Description Y-85RN-004 GM950 UHF control station radio

Y-85RH-021 to 030 GP900 UHF hand-portables

Y-85RH-012 GP900 UHF stores crane hand-portable

Y-85RH-015 GP900 UHF FSR hand-portable

Y-85-RH-012 Battery charger (stores crane)

Y-85BC-002 Battery charger (FSR)

Table 2.7 – UHF Repeater Radio Equipment (cont’d)

7.0 TANKER ESD Refer to BON/1EA1204/INVSAT/0000XX: Tanker/Drill Rig ESD System. An intrinsically safe UHF FM hand-portable radio set is located on the export tanker. This radio has been provided with antenna, battery, leather case and spare battery. The hand-portable is capable of sending a SELCALL signal to the ESD UHF transceiver unit mounted in the TER. The signal tones are decoded to produce a signal that is fed to the FPSO shuttle tanker ESD system. A battery charger has been provided to maintain the mobile handset battery at full capacity for long periods of time until power fails. However, should the handset battery be discharged completely it must be replaced and the battery must be charged using an external charger.

7.1 Portable Radio ESD Transmitter Equipment Details Tag Number: Y-85RH-013A/B Manufacturer: Motorola Model Number: GP900 H01RCC9AN3AC Frequency Range: 402 to 470MHz Output Power: 1W Certification: EEx ib IIC T4 Location: Export Tanker The FM hand-portable radio set is used on the export tanker. The radio sends a signal to the ESD UHF receiver unit mounted in the FPSO TER. The signal tones are decoded to produce a signal, which is fed to the FPSO shuttle tanker ESD system. For maintenance, refer to BON/1EA1204/INVSAT/0000XX: Tanker/Drill Rig ESD System.

Page 53: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 33 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

7.2 Motorola GM950 ESD Receiver Equipment Details Tag Number: Y-85RN-003 Manufacturer: Motorola Model Number: GP950 MO8RHF4AN3AN Frequency Range: 403 to 470MHz Output Power: Receive only Channel Spacing: 12.5kHz Location: FPSO For maintenance, refer to BON/1EA1204/INVSAT/0000XX: Tanker/Drill Rig ESD System.

7.3 Power Supply Equipment Details Manufacturer: Motorola Model Number: GPN6133A Input: 230V/50Hz The power supply is used to maintain the charge in the battery-driven portable radio. For maintenance, refer to BON/1EA1204/INVSAT/0000XX: Tanker/Drill Rig ESD System. Table 2.8 contains a full list of equipment included in the Shuttle Tanker ESD System.

Equipment Number Description Location

Y-85RH-013A/B UHF portable ESD transmitter Shuttle tanker

Y-85AU-004 UHF antenna E Deck top

Y-85RN-003 Motorola GM950 ESD receiver TER on E Deck

Y-85RP-008A/B Single-way charger Shuttle tanker

Table 2.8 – Tanker ESD Equipment

Page 54: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 2 External Communication Systems OPRM-2003-0334 Page 34 of 34 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

8.0 VHF/AM WEATHER TRANSCEIVER Refer to BON/1EA1204/INVSAT/000019: Weather Monitoring System. The VHF/AM weather transceiver system consists of:

• VHF/AM transmitter units (118 to 137MHz) complete with rack mounting

• One antenna

• One power module The weather monitoring system is equipped with a voice message system that is fitted for broadcasting of weather information to aircraft via the VHF AM transceiver. A VHF receiver module is also provided but is not used.

8.1 VHF/AM Weather Transceiver Equipment Details Transceiver: Y-85RN-001 Manufacturer: Jotron Model Number: TR-7510 VHF/AM Ground-to-air Receiver: RA-7202 VHF/AM Transmitter: TA-7410 Frequency Range: 118 to 137MHz Channel Separation: 25kHz/8.33kHz (selectable) Location: TER The unit consists of one transmitter module, one power supply module and one receiver module. The receiver module is provided but not used in the weather monitoring system, as the transmitter will only be broadcasting the weather information. For maintenance, refer to BON/1EA1204/INVSAT/000019: Weather Monitoring System.

Page 55: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 1 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Part 1 Technical Description

Section 3 Internal Communication Systems

Table of Contents

1.0 PUBLIC ADDRESS, INTERCOM AND GENERAL ALARM SYSTEM......................... 3 1.1 Introduction ....................................................................................................... 3 1.2 System Cabinets ............................................................................................... 4 1.3 Loudspeaker ..................................................................................................... 4 1.4 Flashing Beacon ............................................................................................... 4 1.5 Ceiling Loudspeakers........................................................................................ 5 1.6 Metal Cabinet Loudspeakers............................................................................. 5 1.7 Access Panel .................................................................................................... 6 1.8 Talkback Unit .................................................................................................... 6

2.0 AUTO TELEPHONE SYSTEM ..................................................................................... 7 2.1 PABX .............................................................................................................. 7 2.2 Office Telephone............................................................................................... 8 2.3 IS Weatherproof Telephone .............................................................................. 8 2.4 Visual and Audible Alarm .................................................................................. 8 2.5 Acoustic Hood................................................................................................... 9 2.6 Hotline Telephone ............................................................................................. 9

3.0 LOCAL AREA NETWORK SYSTEM ......................................................................... 10

4.0 ENTERTAINMENT SYSTEM ..................................................................................... 10 4.1 Introduction ..................................................................................................... 10 4.2 Satellite Television Antenna Controls .............................................................. 10 4.3 Remotely Controlled Television....................................................................... 13 4.4 Audio Systems ................................................................................................ 14

5.0 CCTV SYSTEM.......................................................................................................... 16

Page 56: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 2 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Table of Contents (cont’d) TABLES Table 3.1 – PAGA Equipment................................................................................................ 6 Table 3.2 – Auto Telephone Equipment (PABX) .................................................................... 9 Table 3.3 – Entertainment System Equipment ..................................................................... 15 Table 3.4 – CCTV Equipment .............................................................................................. 18

Page 57: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 3 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

1.0 PUBLIC ADDRESS, INTERCOM AND GENERAL ALARM SYSTEM 1.1 Introduction

Refer to BON/1EA1204/INVSAT/000014: Public Addressor. This Public Announcement and General Alarm (PAGA) system is made up of two central equipment racks based on Spector Lumenex’s ACE 100 system and each is capable of producing 5700W audio power. Two cabinets are installed for interconnection and distribution of audio and electrical signals. One system includes the Mentor Intercom System. The PAGA is fully redundant, with one unit located in the Communications Equipment Room (CER) and another in the Data Telecomms Room (DTR) and both fed from independent Uninterruptible Power Supply (UPS) systems. A Mentor Intercom System is integrated into the Public Address (PA) system and located in the PA ‘A’ panel located in the CER. The intercom system provided for multiple individual conversations along with multi-party conversations. Access to the telephone exchange is also provided to allow Mentor stations to be used as telephones when needed. Redundant UPS gives 8-hour independent operation of the PAGA system, based on a duty cycle of 5% full alarm, 10% normal speech/85% quiescent state. Two 19in rack-mounted PA access panels and one desktop unit, complete with gooseneck microphone, provide access to the system from the CCR, Incident Control Centre (ICC) and OIM’s office. Five Intrinsically Safe (IS) PA talkback units give access from the helideck and lifeboat areas. Alarm tones can be muted during emergency speech and alarm tone transmission. PA and intercom systems, and Private Automated Branch Exchanges (PABXs) are interfaced to allow telephone extensions with the appropriate ‘class of service’ to make announcements over the PA system and integrate with a message storage and delay device with override from the CCR console. An extension is set up in the PABX to allow telephone calls to be patched to stations on the intercom system by operators in the CCR. The General Alarm (GA) signal is an intermittent tone, followed by a verbal announcement over the PA system giving positive instructions to all personnel as to what actions are required. The GA is initiated either automatically on confirmed detection of fire or gas, or manually from the PA control panel in the CCR. The Prepare to Abandon Platform Alarm (PAPA) signal is a continuous tone of varying frequency and is initiated manually from the PA control panels or emergency hand-stations.

Page 58: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 4 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

1.2 System Cabinets Equipment Details Tag Number: Y-86PM-002A/B (main equipment) Y-86PM-003A/B (MDF) Manufacturer: INVSAT Power Supply: 240V/50Hz from UPS Loading: Quiescent: 1.59kVA; Maximum: 15.9kVA Switch on Surge: 159kVA for 30ms Heat Dissipation: 7.5kW Four central equipment racks have been provided, two for System A and another two for System B. Each system is capable of producing 5700W audio power. The racks contain the power supplies, electronics and associated cooling systems for each of the PAGA systems. For maintenance, refer to BON/1EA1204/INVSAT/000014: Public Addressor.

1.3 Loudspeaker Equipment Details Tag Number: Y-85TX-001 to 136 Manufacturer: DNH Model Number: DSP-25 ExmNT Power: 12W and 25W IP Rating: IP66 Impedance: Transformer 100V, 20 Ohm SPL 1W/1m: 107dB

Dispersion (-6dB) 1kHz/4kHz: 110°/30° Certification: EEx dem IIB+H T26 Certificate: NEMKO 85.080 For maintenance, refer to BON/1EA1204/INVSAT/000014: Public Addressor.

1.4 Flashing Beacon Equipment Details Tag Number: Y-86PB-001A to 008A Y-86PB-001B to 008B Manufacturer: Spector Luminex Model: SS1/06/8/2/5 Tube Power: 10 Joules Power Consumption: 30W maximum Flash Rate: 0.5 to 1.0Hz Lens Colour: Yellow

Page 59: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 5 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

IP Rating: IP66 Certification: EExd IIB T3 Certificate Number: BASEEFA Ex91C1189 The yellow flashing beacons, located at various prominent positions, will provide visual indication of a change of status. For maintenance, refer to BON/1EA1204/INVSAT/000014: Public Addressor.

1.5 Ceiling Loudspeakers Equipment Details Tag Number: Y-86PC-001 to 180 Manufacturer: DNH Model Number: BKF-560T Rated Power: 6W SPL 1W/1m: 90dB

Dispersion (-6dB) 1kHz/4kHz: 170°/60° Frequency Range: 180 to 15,000Hz These loudspeakers are fitted to the ceilings of the living quarters and are provided to give audible messages for both public announcement and emergency purposes. For maintenance, refer to BON/1EA1204/INVSAT/000014: Public Addressor.

1.6 Metal Cabinet Loudspeakers Equipment Details Tag Number: NA Manufacturer: DNH Model Number: AFE-66(T) SPL 1W/1m(-10Db): 90dB SPL re-fed Power: 97dB

Dispersion (-6dB) 1kHz/4kHz: 185°/105° Provided to give audible messages for both public announcement and emergency purposes. For maintenance, refer to BON/1EA1204/INVSAT/000014: Public Addressor.

Page 60: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 6 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

1.7 Access Panel Equipment Details Tag Number: Y-86PO-001/002 Manufacturer: Spector/Luminex Model Number: ACET/18/NK (rack mount) Power Supply: 24V dc Locations: CCR CCC ICC OIM’s Office Keyboard facilities and a microphone provide access to and control of the PAGA system. For maintenance, refer to BON/1EA1204/INVSAT/000014: Public Addressor.

1.8 Talkback Unit Equipment Details Tag Number: Y-86PT-001 to 005 Manufacturer: Spector/Luminex Model Number: ACETS/01/F IP Rating: IP66 Power Supply: 24V dc Locations: Forward Temporary Refuge Port Lifeboat External Muster Point Starboard Lifeboat External Muster Point Port Lifeboat Internal Muster Point Forward Lifeboat Internal Muster Point Pushbutton access and an in-built microphone provide access to the PAGA system. For maintenance, refer to BON/1EA1204/INVSAT/000014: Public Addressor. Table 3.1 contains a full list of equipment included in the PAGA system.

Equipment Number Description

Y-86PM-002A System cabinet (main equipment)

Y-86PM-002B System cabinet (Main equipment)

Y-86PM-003A System cabinet (MDF)

Y-86PM-003B System cabinet (MDF)

Y-86TX-001 to 136 Loudspeakers

Table 3.1 – PAGA Equipment

Page 61: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 7 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Equipment Number Description

Y-86TX-001A to 008A

Y-86TX-001B to 008B

Flashing beacons

Y- 66PC-001 to 180 Ceiling loudspeakers

NA Metal cabinet loudspeakers

Y-86PO-001 to 003 Access panels

Y-86PT-001 Talkback unit – Fwd refuge

Y-86PT-002 Talkback unit - Fwd lifeboat

Y-86PT-003 Talkback unit – Lifeboats 2 and 4

Y-86PT-004 Talkback unit – Lifeboats 1 and 3

Y-86PT-005 Talkback unit – Mess hall

Y-86PM-004 Mentor central exchange unit

Table 3.1 – PAGA Equipment (cont’d)

2.0 AUTO TELEPHONE SYSTEM Refer to BON/1EA1204/INVSAT/000015: Auto Telephone. The auto telephone system consists of a PABX central equipment rack with operator’s/maintenance console, 150 extensions and QSIG interface. The PABX includes call-logging software. Distribution of PABX extensions is made via a main distribution frame and IS barrier cabinet in the DTR.

2.1 PABX Equipment Details Tag Number: Y-86TP-001 Manufacturer: Ericsson Model Number: MD110 This automatically controlled central exchange will handle telephone calls from and to all areas of the facility. For maintenance, refer to BON/1EA1204/INVSAT/000015: Auto Telephone.

Page 62: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 8 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

2.2 Office Telephone Equipment Details Tag Number: Y-86TT-007 to 068 Manufacturer: Ericsson Model Number: Dialog 3210 Office telephones are located in non-hazardous areas. For maintenance, refer to BON/1EA1204/INVSAT/000015: Auto Telephone.

2.3 IS Weatherproof Telephone Equipment Details Tag Number: Y-86TI-001 to 024 Manufacturer: Fernsig Model Number: 5239.0.1001 Certification: EEx ia IIC T6 Certificate Number: BVS 98.D.2020X Protection: IP66 Externally-positioned, weatherproof phones are located around the vessel and in process areas. For maintenance, refer to BON/1EA1204/INVSAT/000015: Auto Telephone.

2.4 Visual and Audible Alarm Equipment Details Tag Number: Y-86TL-001 to 014 Manufacturer: Fernsig Model Number: 5842/1 Certification: EEx ib IIC T5 Certificate Number: BVS 95.D.2099 Ingress Protection: IP66 Power Supply: 240V/50Hz The flashing beacons are positioned at telephones located in noisy areas. For maintenance, refer to BON/1EA1204/INVSAT/000015: Auto Telephone.

Page 63: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 9 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

2.5 Acoustic Hood Equipment Details Tag Number: Y-86TB-001 to 010 Manufacturer: Storacall Tele-acoustics Model Number: T2000 Marine Acoustic Properties: 7dB Noise Reduction The acoustic hoods are positioned at telephones located in noisy areas. For maintenance, refer to BON/1EA1204/INVSAT/000015: Auto Telephone.

2.6 Hotline Telephone Equipment Details Tag Number: Y-86TT-001 to 004 Manufacturer: Interquartz Model Number: 9826N Colour: Red Red telephones – these units will be positioned at areas to allow key personnel instant communication with pre-designated numbers. For maintenance, refer to BON/1EA1204/INVSAT/000015: Auto Telephone. Table 3.2 contains a full list of equipment included in the auto telephone system.

Equipment Number Description

Y-86DP-001 TEL/LAN/patch rack

Y-86TP-001 Ericsson MD110 PABX

Y-86TE-001 Operations and maintenance terminal

Y-86TD-001 IS TEL MDF

Y-86TT-005/006 Digital telephone

Y-86TP-007 to 068 IS weatherproof telephones

Y-86TL-001 to 014 Flashing beacons

Y-86TT-007 to 068 Office telephones

Y-86TB-001 to 010 Acoustic hoods

Y-86TT-001 to 004 Red hotline telephones

Table 3.2 – Auto Telephone Equipment (PABX)

Page 64: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 10 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

3.0 LOCAL AREA NETWORK SYSTEM The Local Area Network (LAN) system has a physical layer that meets UTP Category 5 Ethernet and LAN RJ45 outlet connectors. Each outlet connector is cabled back to a Main Distribution Frame (MDF) in the DTR. The MDF is installed in two empty 19in racks and dual power supplies for additional telecom equipment in one.

4.0 ENTERTAINMENT SYSTEM

4.1 Introduction Refer to BON/1EA1204/INVSAT/000004: Entertainment Equipment. The entertainment system consists of a stabilised 2.4m satellite Television Receive Only (TVRO) dish, which is suitable for simultaneous reception of horizontal and vertical polarised signals from the M-Net and PanAmSat (PAS) satellites. The satellite equipment terminates in a Telecomm Equipment Room (TER) on E Deck and is distributed to receivers in the smoking and non-smoking lounges on C Deck. The entertainment areas each include a widescreen television and a satellite TVRO receiver for M-Net channels from PAS 4. The non-smoking lounge includes the following equipment:

• DVD player, VHS video player, and stereo amplifiers and speakers

• Microphones and stand, complete with microphone mixer

• Devices to allow connection of PC (SVGA) to system for presentations on TV

• Lockable cabinets for all equipment, complete with power socket and PC connection

In addition, each area has a PA/GA mute unit for PA override.

4.2 Satellite Television Antenna Controls Equipment Details Stabilised Satellite Entertainment Antenna Tag Number: Y-86AS-001 Manufacturer: Orbit Marine Model Number: AL-7208 Size: 2.4m Antenna Antenna Type: Prime focus Frequency Band: C Band, Ku Band Operating Frequency: C Band – 3.7 to 4.2GHz Ku Band – 10.7 to 12.95Ghz Antenna Gain: C Band – [email protected] Ku Band – [email protected]

Page 65: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 11 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

LNB Noise Figure (Typical): C Band – 17°k Ku Band – 0.8dB Radome RF Attenuation: C Band – [email protected] Ku Band – <0.8dB@12Ghz

Tracking System Tag Number: Y-86EC-001 Manufacturer: Orbit Marine Model Number: AL-7208-1 Axis Configuration: POL/X/Y Tracking ACU: AL-7200-3M Servo Drive Unit: AL-7200-SDU Pitch/roll Sensors: AL-7200-IMU Tracking Receiver: Yes GPS: Yes Gyrocompass Interface: Synchro 1:1, 36:1 or 360:1 Step-by-step NMEA-0183 or Robertson Current Loop The operation of the TVRO system is fully controlled from the AL-7200-3M Antenna Control Unit (ACU), which is installed in the TER on E Deck. Using the ACU, the operator may select the desired satellite and channel from a list displayed on the ACU monitor. The system automatically extracts the desired satellite information using the satellite database, acquires and tracks the selected satellite by pointing the antenna towards the satellite whilst compensating for the vessel’s pitch, roll and yaw movements. Using the basic operation screen, the operator monitors the system parameters and may select a new satellite and/or tracking channel. The basic operation screen is divided into several display fields, which present the parameters and information required by the system operator. Several advanced functions can be added to this basic operations screen. These functions include the following:

• Menu bar (basic): – Esc-exit – terminates the application – Satellite – invokes the satellite selection procedure

• Menu bar (enhanced): – Manual – enables manual control of the antenna – Restart – restarts the system – Stow – invokes the ‘stow mode’ for the antenna – Set GPS – enables manual entry of latitude and longitude

Page 66: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 12 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

– Clear GPS – performs a hard reset of the receiver and enters factory settings into the system. May require up to 5 minutes to recover from this operation

– Set compass – looks at the selected compass interface type

• Ship co-ordinates field: – Date, time, longitude, latitude, yaw, pitch, roll, compass heading

• Antenna position field: – Azimuth – Elevation – PolSkew

• Antenna deviation field: – Graphically depicts the tracking error of the antenna

• Automatic Gain Control (AGC) and AGC text fields: – These fields present the AGC signal levels that represent the strength of the

satellite signal that is received by the antenna

• Satellite and channel select field: – Selected satellite – gives details of the currently selected satellite – Selected control channel – gives details of the currently selected channel

• System messages field: – Current mode – step track, Inertia Measurement Unit (IMU) initiated etc – IMU status – locked, unlocked

Note: If malfunctions occur during operation, a red type, blinking error message appears in the system messages field. Refer to the troubleshooting guide in the ‘Invsat’ Entertainment System Data Book, No 10754 for recommended corrective actions.

When the system is turned on, an ‘auto restart’ sequence is initiated, which includes the following steps:

• Encoder initiation procedure, which lasts for up to 40 seconds. At the end of this procedure, the antenna is positioned at the 0.0 position (zenith)

• IMU initiation procedure, which lasts for up to 100 seconds. At the end of this procedure the IMU is ‘locked’, ie the antenna is slaved to and stabilised by the information supplied by the IMU

• Satellite acquisition (point to satellite), which lasts for up to 60 seconds. During this period, the antenna moves to the estimated position of the last selected satellite, searches for the satellite and then acquires it. When the satellite is acquired, the system diverts to step track mode of operation, maintaining the antenna boresight directed towards the satellite

When the operator activates the satellite selection mode, the system automatically identifies all satellites that are within the parameters set in the ACU configuration and displays a memory of these satellites. The operator selects a satellite and thus activates the acquisition mode.

Page 67: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 13 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

In acquisition mode, the system automatically acquires the desired satellite according to the following parameters:

• The satellite position selected by the operator from the ACU monitor or the last selected satellite before shutdown

• Ship’s position (as provided by the GPS)

• Ship’s heading (given by the Gyrocompass)

• Ship’s pitch and roll (from the IMU sensors) The ACU calculates the satellite direction relative to the ship and antenna positioned, and will point the antenna to the best-estimated satellite direction. There are several methods of locating satellite signals of sufficient strength. When in step mode, the signal tracking system will implement periodic step changes to both the elevation and the azimuth axes. The ACU can also operate in search mode. When activated, the ACU will perform a spiral-type search around the current positioner’s location to acquire a satellite signal of sufficient strength. A box-mode signal search facility is also available whereby the antenna will move in expanding and contracting rectangular patterns around the starting point. For maintenance refer to BON/1EA1204/INVSAT/000004: Entertainment Equipment.

4.3 Remotely Controlled Television Equipment Details Widescreen Television Tag Number: Y-86ET-001A and 001C Manufacturer: Philips Model Number: 36PW9525 Power Consumption: 150W Location: Non-smoking Lounge Smoking Lounge

TV/VCR Tag Number: Y-86ET-001B Manufacturer: Philips Model Number: 20PV220 Power Consumption: 53W Location: Helideck Briefing Room The marine stabilised TVRO system feeds a signal to two multichoice digital satellite decoders. From the decoders the signals are sent to two remotely-controlled Philips widescreen television sets, positioned in the non-smoking lounge and smoking lounge, and TV/VCR set positioned in the helideck briefing room. To complement the TV set, a Philips DVD player has been installed.

Page 68: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 14 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

VHS videotapes may be recorded or played through a Samsung SV-5000W, video cassette recorder that is connected up to the television system. A CorioScan System provides an interface between a computer and the TV system to give a facility for computer-based presentations to be shown. Full operating procedures for the above equipment together with a list of channel frequencies have been provided in BON/1EA1204/INVSAT/000004: Entertainment Equipment. For maintenance, refer to BON/1EA1204/INVSAT/000004: Entertainment Equipment.

4.4 Audio Systems Equipment Details DVD Player Tag Number: Y-86EV-001A Manufacturer: Philips Model Number: DVD711 Playback System: DVE-Video Video CD CD (CD-R and CD-RW)

VCR Player Tag Number: Y-86EV-001B Manufacturer: Samsung Model Number: SV-5000W Frequency Range: 100kHz to 30MHz Power Consumption: 24W Rated Voltage: 230V/50Hz

AV Surround Receiver Tag Number: Y-86EA-001 Manufacturer: Nippon Colombia Co Ltd Model Number: Denon AVR-2800

Micro-satellite Sound System Tag Number: Y-86EL-001A to F Manufacturer: Sony Model Number: SA-VE505 Power Output: With 8Ω loads per channel driven from 20 to 150Hz – rated 100W per channel minimum rms power

Page 69: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 15 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Front, Centre, Active and Rear Speakers Speaker Impedance: 8Ω Frequency Range: 120Hz to 20,000Hz Subwoofer Speaker Frequency Range: 26Hz to 150Hz Location: Non-smoking lounge Audio systems onboard consist of a Philips DVD player, a Samsung VCR, a Denon AV receiver for surround sound and a Sony micro-satellite speaker system. The Denon AV surround receiver unit acts as an interface between the TV, audio systems and the speakers. Sound patterns can be selected from six different modes. The Sony micro-satellite system is a sound control system, designed to provide all-round Dolby Pro Logic sound from a group of six loudspeakers. Full operating procedures for the above equipment, together with a list of channel frequencies, have been provided in BON/1EA1204/INVSAT/000004: Entertainment Equipment. For maintenance, refer to BON/1EA1204/INVSAT/000004: Entertainment Equipment. Table 3.3 contains a full list of equipment included in the entertainment system.

Equipment Number Description

Y-86AS-001 Stabilised satellite antenna – Procom BCL1-KA

Y-86EC-001 Tracking controller – Orbit AL-7200-3M

Y-86ES-001 Four-way active splitter

Y-86EM-001 VGA/TV converter

Y-86EQ-002 Projector screen (in conference room)

Y-86EV-002 Video projector (in conference room)

Y-86ER-001A Satellite receiver No 1

Y-86ER-001B Satellite receiver No 2

Y-86ET-001B Combined TV/VTR Unit – Philips 20PV220 (Heli-briefing Room)

Y-86EE-001A Entertainment rack

Table 3.3 – Entertainment System Equipment

Page 70: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 16 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Equipment Number Description

Non-smoking Lounge Entertainment Equipment

Y-86EE-001B Entertainment cabinet

Y-86EV-001A DVD player – Philips DVD711

Y-86EV-001B VCR – Samsung SV-5000W

Y-86EA-001 AV receiver – Denon AVR-2800

Y-86EP-001A Entertainment mute unit

Y-86ER-001A Satellite receiver – Multichoice DSD720

Audio Mixer (no tag) Spirit folio notepad

Y-86ET-001A Widescreen television – Philips 36PW9525

Y-86EL-001A to F Stereo loudspeakers – Sony SA-VE505

Y-86EM-002 Microphone and stand – Electrovoice MC150

Smoking Lounge Entertainment Equipment

Y-86EE-001A and 001C Entertainment cabinets

Y-86EP-001A/001B Entertainment mute unit

Y-86ER-001A/001B Satellite receiver – Multichoice DSD720

Y-86ET-001A/001C Widescreen television – Philips 36PW9525

Table 3.3 – Entertainment System Equipment (cont’d)

5.0 CCTV SYSTEM Equipment Details Camera Housing Tag Number: Y-86VY-001 to 004 Manufacturer: Coex Model Number: FECH600 Power Consumption: 230V, 50Hz @ 245mA Rating: EExd IIB T5 Certificate Number: BASEEFA Ex87B1370X IP Rating: IP67

Page 71: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 17 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Pan and Tilt Cameras Tag Number: Y-86VY-001 to 004 Manufacturer: Coex Model Number: FEPT Power Consumption: 230V, 50Hz @ 50mA Rating: EExd IIB T5 Certificate Number: BASEEFA Ex88B1253 IP rating: IP67

CCTV Wash Units Tag Number: Y-886VU-001 to 004 Manufacturer: Coex Model Number: FEWS Maximum Pressure: 6bar

21-inch Colour Video Monitor Tag Number: Y-886VM-001 to 003 Manufacturer: JVC Model Number: TM-2100PN-K Power Consumption: 230V, 50Hz @ 0.6A

CCTV Control Keyboard Tag Number: Y-86VO-001 Manufacturer: Molynx Ltd Model Number: Visilynx II Power Requirements: 12V dc

Timelapse VCR Tag Number: Y-86EV-003 Manufacturer: JVC Model Number: SR-S970E Power Requirements: 230V, 50Hz Refer to BON/1EA1204/INVSAT/000018: CCTV Monitoring System. The Visilynx II CCTV system consists of a central equipment rack complete with field cable terminations and camera power distribution. The system has a video matrix with 32 camera input capacity. Presently there are four Exd pan and tilt cameras in EExd enclosures complete with wash systems and wipers controlled from the system.

Page 72: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 3 Internal Communication Systems OPRM-2003-0334 Page 18 of 18 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Three outputs feed three 21-inch colour monitors mounted on the CCR console. Alarm inputs for each camera are fed into the CCTV cabinet with video loss alarms fed to the telecoms supervisory system. A desktop Visilynx II keyboard remotely controls the cameras and monitors. A time-lapse video recorder is also controlled from the keyboard. Visilynx II is a modular CCTV system that is designed to provide operators with varying degrees of control over operational cameras and their associated ancillary functions such as lens focus, zoom, pan/tilt, washers and wipers etc. From the keyboard the operator can switch the video signals from the cameras to monitors or other peripheral devices such as VCRs or frame stores. The unit can handle alarm inputs and is capable of routing a camera display to one of 16 preset positions. The alarm picture can then be directed to a predetermined dedicated alarm monitor and provide a message identifying the source of the alarm. A security key restricts access to the system. A choice of communications interfaces allows Visilynx to be interconnected via the rack-mounted unit to an external PC for system configuration, programming and event logging. For maintenance, refer to BON/1EA1204/INVSAT/000018: CCTV Monitoring System. Table 3.4 contains a full list of equipment included in the CCTV system.

Equipment Number Description

Y-86VY-001 Helideck/process deck camera and head assembly

Y-86VY-002 to 003 Boat loading camera and head assembly (port/starboard)

Y-86VY-004 Tanker offloading camera and head assembly

Y-86CP-001 CCTV cabinet

Y-86EV-003 VCR

Y-86VP-001 Power distribution unit

Y-86VM-001 21-inch CCTV monitor

Y-86VM-002 21-inch CCTV monitor

Y-86VM-003 21-inch CCTV monitor

Y-86VO-001 Camera control keyboard

Y-86VU-001 to 004 CCTV camera wash water systems

Table 3.4 – CCTV Equipment

Page 73: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 1 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Part 1 Technical Description

Section 4 Navigation Systems

Table of Contents

1.0 RADAR SYSTEM......................................................................................................... 2

2.0 GYROCOMPASS......................................................................................................... 3

3.0 SHIP’S CLOCK SYSTEM ............................................................................................ 4

4.0 GLOBAL POSITIONING SYSTEM............................................................................... 4

5.0 NAVIGATION AIDS AND SIGNAL LIGHTS SYSTEM ................................................. 5 5.1 Control Panel .................................................................................................... 5 5.2 Marine Lanterns ................................................................................................ 6 5.3 Foghorns........................................................................................................... 7 5.4 Leading Light .................................................................................................... 7

6.0 WEATHER MONITORING SYSTEM............................................................................ 8

7.0 TANKER BERTHING AID.......................................................................................... 12 TABLES Table 4.1 – Radar Range Scales/Rings and Pulse Lengths................................................... 2 Table 4.2 – Radar System Equipment ................................................................................... 3 Table 4.3 – Gyrocompass Equipment.................................................................................... 4 Table 4.4 – GPS Equipment .................................................................................................. 5 Table 4.5 – Navigation Aids Equipment ................................................................................. 8 Table 4.6 – Weather Monitoring Equipment......................................................................... 11

Page 74: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 2 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

1.0 RADAR SYSTEM Equipment Details X Band Antenna Unit Tag Number: Y-87AR-001 Manufacturer: Furuno Model Number: FR-2115 Ambient Temperature: -25ºC to +70ºC Vibration: IEC 945, Edition 3 Rotation Speed: 24/42rpm Output Power: 12kW

Radar Display Unit Tag Number: Y-87AD-001 Manufacturer: Furuno Model Number: RDP-124 Power: 220V Power Consumption: dc: 300W (100 knots) ac: 465W (100 knots) Ambient Temperature: -25ºC to +70ºC Vibration: IEC 945, Edition 3 Refer to BON/1EA1204/INVSAT/000001: Radar Plant (X Band). The radar system consists of an X Band (9GHz) rotating antenna scanner unit, which covers a 360° horizon within a 40km radius range of the FPSO, mounted on top of the radar mast on Deck E and Automatic Radar Plotting Aid (ARPA) colour display unit located in the Central Control Room (CCR). For maintenance, refer to BON/1EA1204/INVSAT/000001: Radar Plant (X Band). Table 4.1 contains a list of radar range scales/rings and pulse lengths.

Range Scale Range Rings Pulse Length 0.25 0.05 Short 0.5 0.1 Short 0.75 0.25 Short (medium) 1.5 0.25 Short (medium) 3.0 0.5 Medium (long/short) 6.0 1 Medium (long/short) 12.0 2 Medium (long/short) 24.0 4 Medium (long/short) 48.0 8 Long (medium) 96.0 16 Long

Table 4.1 – Radar Range Scales/Rings and Pulse Lengths

Page 75: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 3 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Table 4.2 contains a full list of equipment included in the radar system.

Equipment Number Description

Y-87AR-001 X Band antenna scanner unit

Y-87AD-001 Display unit

Table 4.2 – Radar System Equipment

2.0 GYROCOMPASS Equipment Details Gyrocompass Tag Number: Y-87MG-001A/B Manufacturer: Raytheon Anschutz Model Number: Standard 20 Plus Power Supplies: 230V 50/60Hz Settling Time: 3 hours

Settle Point Error: ±0.1° x sec LAT

Rate of Rollow-up: 70°/s

Acceleration of Follow-up: 150°/s2

Ambient Temperature: -10°C to +55°C Type of Enclosure: IP23 The gyrocompass system is based on dual Raytheon Gyrocompasses mounted in the telecoms equipment room on Deck E. Table 4.3 contains a full list of equipment included in the gyrocompass system. The gyrocompass system provides, via an absolute, coded scanning and transmission system, an absolute and clear transmission of compass heading reference via serial interface to the repeater compass. The outputs of the gyrocompasses are fed via the gyro control unit to the various other systems requiring compass information. In addition, the control unit feeds a repeater and an operator unit mounted in the CCR on B Deck. For further information and maintenance details, refer to BON/1EA1204/ INVSAT/000003: Gyrocompass (Dual).

Page 76: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 4 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Table 4.3 contains a full list of gyrocompass equipment.

Equipment Number Description

Y-87MG-001A Gyrocompass No 1

Y-87MG-001B Gyrocompass No 2

Y-87MK-001 Gyro control unit

Y-87MR-001 Gyro repeater

Y-87MO-001 Operator unit gyro

Table 4.3 – Gyrocompass Equipment

3.0 SHIP’S CLOCK SYSTEM Refer to BON/1BA0482/HANIL/000001: Clock System. The ship’s clock system is simply a series of independent battery-powered clocks in various locations. There is no master/slave relationship. The clocks are not Ex-rated and do not become isolated at any stage of Emergency Shutdown (ESD). For maintenance, refer to BON/1BA0482/HANIL/000001: Clock System.

4.0 GLOBAL POSITIONING SYSTEM Equipment Details Tag Number: Y-87SG-001 Manufacturer: Garmin Model Number: GPS 128 Receiver: 12 parallel – channel Position Accuracy: 1 to 5m (DGPS corrections) 15m (rms) Velocity Accuracy: 0.1 knot rms ready state Location: CCR console Refer to BON/1EA1204/INVSAT/000002: GPS (Complete). The GPS is based on a GPS antenna mounted above E Deck and a GPS display unit mounted in the CCR on B Deck with Digital GPS (DGPS) receiver. The GPS signal is interfaced with VHF marine radios, V-sat system, radar, Inmarsat C, MF/HF transceiver and gyrocompasses. For maintenance, refer to BON/1EA1204/INVSAT/000002: GPS (Complete).

Page 77: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 5 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Table 4.4 contains a full list of equipment included in the GPS.

Equipment Number Description

Y-87AG-001 GPS antenna

Y-87AG-002 DGPS receiver

Y-87SG-001 GPS display unit

Y-87SD-001 Interface unit

Table 4.4 – GPS Equipment

5.0 NAVIGATION AIDS AND SIGNAL LIGHTS SYSTEM Refer to:

• BON/1DA0860/ORGA/000001: Navigation Aids System

• BON/1BA0860/HYUNJIN/000001: Control Panel for Navigation and Signal Light

• BON/1BA0860/HYUNJIN/000002: Control Panel for Signal Light

• BON/1BA0860/HYUNJIN/000003: Control Panel for Outside Lights The navigation and signalling lights comprise all navigation aids, including two foghorns.

5.1 Control Panel Equipment Details Control Panel Tag Number: UPS-7206-V-01 Manufacturer: Orga BV Model Number: LC300//FC200 Type: PS4206.600 Ingress Protection: IP54 Power Supply: 230V ac/24V dc Power Outputs: Foghorns 190V ac morse code ‘U’ Lanterns 220V ac morse code ‘U’ Leading Light 230V ac

Battery Charger/Rectifier Manufacturer: Saft Nife BV Model Number: 24SPR25 Supply Voltage: 230V ac Output Power: 25A @ 24V dc

Page 78: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 6 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Battery Bank Manufacturer: ORGA Model Number: PS4806. 600 Ingress Prot: IP 12 Nominal Voltage: 24V dc Capacity: 300AH/C/0 The Navaid central control panel is provided with all the control/alarm functions required to control/monitor the complete system. The panel also supplies the foghorns and lights with power. The central control panel is supplied by an ac supply provided through a dc/ac inverter system from bank of batteries. A battery charger maintains the charge in the batteries. For maintenance refer to:

• BON/1BA0860/HYUNJIN/000001: Control Panel for Navigation and Signal Lights

• BON/1BA0860/HYUNJIN/000002: Control Panel for Signal Lights

• BON/1BA0860/HYUNJIN/000003: Control Panel for Outside Lights

5.2 Marine Lanterns Equipment Details Manufacturer: ORGA Schiedam Holland Model Number: L303EX-M Standard as Lantern: IALA Certificate: Trinity House/DGSM Ex-proof Standard: EN 50014/18/19/28 Execution: EEx edm IIB T3 Ingress Protection: IP 67 Lens Diameter: 300mm Lamp: 12V 3A/CC8 EX Intensity: 1400CD white Power Requirements: 220V ac Refer to BON/1DA0860/ORGA/000001: Navigation Aids System. The lantern system is provided with functions that provide a local/remote, manual or automatic control function to operate the lanterns. An alarm system will indicate when a lantern is not functioning correctly. To increase the service intervals on the lamp, an automatic lamp-changer will rotate a fresh bulb into position should any of the lamps burn out. A total of six lamps may be changed out in this fashion. For maintenance, refer to BON/1DA0860/ORGA/000001: Navigation Aids System.

Page 79: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 7 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

5.3 Foghorns Equipment Details Aft Tag Number: 06-L001 Fwd Tag Number: 07-L001 Manufacturer: ORGA Schiedam Holland Model Number: FH800EX Standard: IALA Ex-standard: EN 50014/19: SFA3009: 1985 Execution: Ex se II T6 Certificate: KEMA

Divergence: 360° Resonance Frequency: 800 to 900Hz Power Requirements: 190V ac, 96W The foghorn system is provided with functions that provide a local/remote, manual or automatic control. An alarm system will indicate when the foghorns are not functioning correctly. For maintenance, refer to BON/1DA0860/ORGA/000001: Navigation Aids System.

5.4 Leading Light Equipment Details Tag Number: HOLD Manufacturer: ORGA Schiedam Holland Model Number: SL100SA Ingress Protection: IP67 Lens Material: Glass Filter Colour: Red/Green Lamp: 12V/5A/C8 Voltage: 12V dc The leading light is provided with functions that provide a local/remote, manual or automatic control. An alarm system will indicate when the light is not functioning correctly.

Page 80: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 8 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

For maintenance, refer to BON/1DA0860/ORGA/000001: Navigation Aids System. Table 4.5 contains a full list of navigation aids equipment.

Equipment Number Description

HOLD Electrical cable navigation light control panel

HOLD Navigation and signal lights control panel

HOLD Side light (red)

HOLD Side light (green)

HOLD Stern light (white)

HOLD Navigation aids control panel

HOLD 10NM warning light

HOLD 10NM warning light

HOLD 2NM warning light

HOLD 2NM warning light

HOLD 2NM foghorn

HOLD 2NM foghorn

HOLD Water-tight junction box

HOLD Shuttle tanker leading light

Table 4.5 – Navigation Aids Equipment

6.0 WEATHER MONITORING SYSTEM Equipment Details Weather Monitoring Cabinet Tag Number: Y-887ME-503 Manufacturer: INVSAT

Air Pressure Sensor Tag Number: Y-87MS-001 Manufacturer: Vaisala Model Number: PTB100A Range: 800 to 1060mB/h Pa Output: 0 to 5V

Current Consumption: <4mA

Page 81: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 9 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Humidity Sensor Tag Number: Y-87MH-001 Manufacturer: Vaisala Model Number: HMP260EX Certification: EEx ia IIC T6 Certificate Number: Nemko 91C.103134X Range: 0 to 100% RH Output: 4 to 20mA Maximum Supply Voltage: 28V dc

Current Consumption: <4mA

Wind Speed and Direction Sensor Tag Number: Y-87MA-001 Manufacturer: Observator Instruments Model Number: OMC-150 Certification: EEx ia IIC T5 Certificate Number: Ex 90.159

Direction: 0 to 359° Speed: 0 to 75m/s

Visibility Sensor Tag Number: Y-87MV-001 Manufacturer: Vaisala Model Number: FD12

Heave, Roll and Pitch Sensor Tag Number: Y-87MM-001 Manufacturer: TSS (UK) Ltd Model Number: CMS HPR25 Power Requirements: 12 to 36V dc Power Consumption: 6.5W at 24V dc Ingress Protection: IP68

Range: Heave ±30m Pitch/Roll ±45

Page 82: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 10 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Crane Wind Speed/Direction Meter Tag Number: Y-87MD-001B (Speed) Y-87MD-001C (Direction) Manufacturer: Record, Townson, Mercer Model Number: FM4 (both displays) Output: 4 to 20mA

Air Temperature Sensor Tag Number: Y-87MT-001 Y-87MT-002 Manufacturer: Fisher Rosemount Model Number: 244E (Tx) HBS1/2685 (PRT Probe) Power Requirements: 24V dc

Range: 0°C to 60°C Output: 4 to 20mA Certification: EEx ia IIC T4 Certificate Number: BASEEFA Ex 95C 2019X Location: Located within Stevenson Screens

Central Processor Tag Number: Y-887MD-503A Manufacturer: Advantech Model Number: IPC-620DP Power Requirements: 230V ac 350W maximum

Cloud Ceilometer Tag Number: Y-87MC-001 Manufacturer: Elliasson Model Number: Cloud Ceilometer CBME 40A Power Requirements: 230V, 50Hz Range: 30 to 12,500ft Output: RS 232C, V.23 ALT V.21, BELL 103 ALT. BELL 212 Refer to:

• BON/1EA1204/INVSAT/000019: Weather Monitoring System

• BON/1EA1204/INVSAT/000005: Weather Facsimile

Page 83: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 11 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

The weather monitoring system centred on the weather monitoring cabinet in the Telecomm Equipment Room (TER) on E Deck is powered from the telecom Uninterruptible Power Supply (UPS). The system generates voice messages which are available via dial-in telephone lines and aeronautical band radio. The information included in this message is updated every 10 minutes and is interfaced with the Local Area Network (LAN) equipment cabinet in order to provide it to all PC users connected to LAN. The PACE weather display uses a Windows NT-based programme, which is loaded onto a PC. Normally the dedicated weather display will automatically run-up when the PC is booted up. Most of the features on the screen are self-explanatory. The following points however are worthy of note:

• When the PACE processor is first started then approximately 2 minutes must be allowed before the displays will be fully functional

• An aeronautical-band radio equipped with voice message system is fitted for broadcasting of weather information to aircraft

• The windsock shows wind direction relative to the vessel, ie it does not take the vessel heading into account. All other wind directions displayed on the screen are compensated for the heading, ie they report direction relative to magnetic North

• The maximum gust shows the single highest wind speed recorded within the last 2 minutes and it is updated once every second

• QFE is the barometric pressure as it would be measured if the sensor were located at 45m above sea level

• The accommodation roof air temperature sensor is used for calculating dew point and for inclusion in the dial-in voice message of weather data

For maintenance, refer to BON/1EA1204/INVSAT/000019: Weather Monitoring System. Table 4.6 contains a list of all the equipment in the weather monitoring system.

Equipment Number Description Location

Y-87ME-001 Weather monitoring cabinet TER

Y-87MS-001 Air pressure sensor E Deck Top

Y-87MH-001 Humidity sensor E Deck Top

Y-87MA-001 Wind speed and direction sensor

E Deck Top

Y-87MV-001 Visibility sensor E Deck Top

Y-87MM-001 Heave, roll and pitch sensor TER on E Deck

Y-87MT-001/002 Air temperature sensors E Deck Top and Helideck

Y-87MD-001C Central processor TER on E Deck

Table 4.6 – Weather Monitoring Equipment

Page 84: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 12 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Equipment Number Description Location

Y-87MT-001/002 Power supply unit for air temperature x 2, humidity and air pressure transmitters

TER on E Deck

Y-87MC-001 Power supply unit for wind sensor transmitters

TER on E Deck

Y-87MD-001A Master display PC rack-mounted

TER on E Deck

Table 4.6 – Weather Monitoring Equipment (cont’d)

7.0 TANKER BERTHING AID Refer to BON/1EA1204/INVSAT/0000.xx: Tanker Berthing Aid. The OSPREY berthing system consists of the four following pieces of equipment, with associated cables and connectors, as described below:

• Portable tanker unit (taken onboard visiting offtake tanker)

• Support vessel unit (semi-permanent on tug boat)

• Base station unit (FPSO)

• Remote display/data archiving PC (FPSO) The OSPREY DGPS tanker berthing aid provides two basic functions:

• As a berthing aid providing precise information on tanker approach distance, position and speed

• As a mooring aid, providing audible and visual alarms on collision danger, and more importantly a difference in tanker and FPSO heading alarm, giving a vital early warning of tanker fishtailing

The system is completely self-contained and consists of a base station permanently installed on the FPSO, a lightweight portable tanker unit to be hand carried onto the approaching tanker, and the support vessel unit installed on the work boat currently tending the tanker berthing. The three units communicate via integral radio transceivers operating on a single UHF or VHF frequency, and both the tanker and vessel units provide a real-time graphical display of the berthing process with sub-meter positional accuracy. The support vessel unit listens passively to the messages from the base station and portable tanker unit, and does not transmit back to them. A remote PC is also available for network connection to the base station. This is to provide data archiving and VCR style playback of previous berthing. The following data is provided by the system:

• A graphical display of the FPSO and tanker

• Relative bow/stern or closest point distance between the FPSO and tanker

• Relative speed and angle of tanker approach

• Difference in heading (angle)

Page 85: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 1 Section 4 Navigation Systems OPRM-2003-0334 Page 13 of 13 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

• Absolute FPSO and tanker heading

• Absolute tanker speed, direction and acceleration

• Hawser tension (measured at the FPSO) The base station is either mounted in an existing 19in rack compatible equipment cabinet or placed on a desktop and powered from an external 110/240V ac supply, which should be UPS protected. External connections to the base station include a GPS antenna, a UHF antenna, a mooring hawser load signal (4-20mA), network connection (RJ45 10/100 base T-NetBEUI), and a connection to the existing FPSO ship’s gyroscope (NMEA 0183 signal). The tanker portable unit is a self-contained 458 x 330mm briefcase containing all equipment, antennae and cables shown above. The only connection to the tanker is an external power cable; either 110/240V ac or 24V dc. The support vessel unit is physically identical to the tanker portable unit but, by virtue of its software configuration, acts as a passive repeater of the tanker portable unit for the benefit of the support vessel personnel. For maintenance, refer to: BON/1EA1204/INVSAT/0000.xx Tanker Berthing Aid.

Page 86: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Operating Procedures OPRM-2003-0334 Page 1 of 1 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Part 2 Operating Procedures

Section 1 System Operating Procedures

Section 2 Equipment Operating Procedures

Section 3 Supplementary Operating Procedures

Page 87: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 1 System Operating Procedures OPRM-2003-0334 Page 1 of 1 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Part 2 Operating Procedures

Section 1 System Operating Procedures

Procedure Number There are no System Operating Procedures associated with this document.

Page 88: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 1 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Part 2 Operating Procedures

Section 2 Equipment Operating Procedures

Procedure Number PROCEDURE NO 2/001: LIFEBOAT SAILOR RT2048 VHF RADIOTELEPHONE PROCEDURE NO 2/002: LIFEBOAT SART (9GHz) RADAR TRANSPONDERS PROCEDURE NO 2/003: LIFEBOAT SATELLITE EPIRB PROCEDURE NO 2/004: DISTRESS CALLS PROCEDURE NO 2/005: BASIC OPERATION PROCEDURE NO 2/006: BASIC DSC OPERATION PROCEDURE NO 2/007: BASIC OPERATION OF SAILOR C4901 HANDSETS PROCEDURE NO 2/008: BASIC DSC OPERATION OF SAILOR C4901 HANDSETS PROCEDURE NO 2/009: DISTRESS CALL FROM SAILOR HC4500 MF/HF PROCEDURE NO 2/010: BASIC FUNCTIONS OF THE SAILOR HC4500 MF/HF

CONTROL UNIT PROCEDURE NO 2/011: DSC FUNCTIONS OF THE SAILOR HC4500 MF/HF

CONTROL UNIT PROCEDURE NO 2/012: OPERATION OF THE GDMSS TELEX PRINTER PROCEDURE NO 2/013: OPERATION OF THE GDMSS TELEX SYSTEM PROCEDURE NO 2/014: SET UP NAVTEX NAV5 RECEIVER PROCEDURE NO 2/015: PERFORM A SELF-TEST ON THE NAVTEX

NAV5 RECEIVER PROCEDURE NO 2/016: OPERATION AND TUNING OF FAX 4 WEATHER

FAX RECEIVER PROCEDURE NO 2/017: OPERATION OF THE VHF/AM GROUND-TO-AIR

TRANSCEIVER PROCEDURE NO 2/018: SAFE OPERATION OF HAND-PORTABLE UHF IS RADIOS PROCEDURE NO 2/019: OPERATION OF THE INMARSAT B SYSTEM PROCEDURE NO 2/020: OPERATION OF THE HELICOPTER BEACON (NDB) PROCEDURE NO 2/021: OPERATION OF THE TANKER ESD SYSTEM PROCEDURE NO 2/022: OPERATION OF THE PUBLIC ADDRESS AND GENERAL ALARM (PAGA) SYSTEM PROCEDURE NO 2/023: OPERATION OF THE AUTO TELEPHONE SYSTEM (PABX) PROCEDURE NO 2/024: OPERATION OF THE MARINE TVRO SYSTEM

Page 89: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 2 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Procedure Number PROCEDURE NO 2/025: OPERATION OF THE CCTV SYSTEM PROCEDURE NO 2/026: OPERATION OF THE GYROCOMPASS UNIT PROCEDURE NO 2/027: OPERATION OF THE NAVIGATION AND SIGNAL

LIGHTS SYSTEM

Page 90: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 3 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: TELECOMMUNICATIONS

PROCEDURE NO 2/001: LIFEBOAT SAILOR RT2048 VHF RADIOTELEPHONE

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The Sailor RT2048 VHF radiotelephone installed in each lifeboat is a compact solid-state unit intended for ship-to-ship and ship-to-shore communication. The unit can operate in both simplex and semi-duplex mode.

PRECONDITIONS The radio battery should be maintained with a full charge at all times.

Page 91: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 4 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 Switch on unit and adjust to required volume using the ON/OFF/VOL control. 2 To select the Distress Channel, push quick-select button for Channel 16. Channel

readout should indicate 16. 3 Distress Call Procedure Transmit on Channel 16 MAYDAY MAYDAY MAYDAY THIS IS <name of ship, call sign or other identification> (REPEAT THREE TIMES)

followed by MAYDAY. NAME OF SHIP – position, type of emergency, help required and any other

information that will assist with rescue operations. Notes: (1) The distress call should be repeated from time to time until an answer

is heard. (2) If no reply is heard on Channel 16, the call should be repeated on any

other available channel. (3) Speak slowly, pronouncing each word distinctly.

4 To select a channel, push channel select buttons, eg button 2 then button 3, channel readout should indicate 23.

5 To select a private channel, push SHIFT button + P button + channel select button, eg button 3, channel readout, should indicate P3.

6 To select reduced power, press SHIFT + 1W. Power output of radio will be reduced to 1W. The 1W LED located below the channel readout should illuminate.

7 To return to full power, press SHIFT + 1W. Power output of radio will be returned to 25W. The 1W LED located below the channel readout should be extinguished.

8 Dual watch operation allows monitoring of Channel 16 for 0.1 seconds every 1.2 seconds in addition to the selected channel, eg Channel 11. To select dual watch operation, push SHIFT + DW button. The display will alternate between selected channel, eg Channel 11 and Channel 16.

9 To switch off dual watch operation, push SHIFT + DW button and readout will return to selected channel, eg Channel 11.

10 The intensity of the LED indicator lights may be controlled in four steps by the DIM button. Keyboard illumination is switched ON and OFF.

Page 92: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 5 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: TELECOMMUNICATIONS

PROCEDURE NO 2/002: LIFEBOAT SART (9GHz) RADAR TRANSPONDERS

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The SART transponder fitted to each of the lifeboats is a TronSart unit manufactured by Jotron. The purpose of the SART is to provide a secondary alarm when search and rescue units are searching for a liferaft/lifeboat in distress. The SART will help the units pinpoint exactly where the distressed boat is located within a large area. This procedure details the activation and deactivation of the transponder.

PRECONDITIONS • The TronSart transponder should be tested every 6 months using either the ship’s radar

or the radar of a nearby vessel.

• The battery unit must be replaced every 4 years.

• The TronSart should be kept away from metal objects.

Page 93: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 6 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 The TronSart should be activated immediately after the EPIRB has been started or on instructions from the ICC.

2 To activate, break the seal at the switch. 3 Pull the locking pin and ensure that the switch enters the ON position. An audible

bleep will be heard and the indicator LED will flash. 4 Place (or hold) the transponder in a vertical position as high as possible. When the

TronSart is within range of active, 3cm radar, the internal loudspeaker will be activated.

5 A hand-held radio or Sailor VHF radio should then be used to establish contact with the approaching boat or helicopter.

6 To deactivate the TronSart, move the switch to the OFF position and insert the locking pin.

Page 94: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 7 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: TELECOMMUNICATIONS

PROCEDURE NO 2/003: LIFEBOAT SATELLITE EPIRB

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION Satellite EPIRBs The purpose of an EPIRB is to provide an immediate alarm to the search and rescue authorities to indicate that a vessel is in distress. Care must be taken not to activate the EPIRB unless in an emergency situation, in such cases the user will be held responsible. This procedure details the activation and deactivation of the beacon.

PRECONDITIONS • Every 3 months, the internal self-test should be carried out. Check the expiry date on the

hydrostatic release mechanism and the battery

• Every 2 years, perform an extended test with the aid of TronDEC Decoder

• Every 4 years, in addition to the 2-year maintenance, the battery unit must be changed

Page 95: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 8 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 To activate, pull out the locking pin on the clamp that holds the beacon. 2 Pull out the retaining rod whilst holding the beacon with one hand and remove the

EPIRB from the bracket. 3 Break the seal and pull the locking pin holding the main switch. 4 The switch is spring-loaded and will automatically go to the EMERGENCY position. 5 The LED indicator, located at the top of the EPIRB, will start to flash indicating that

the EPIRB is operating. In addition, the strobe light will start to flash. 6 If possible, keep the EPIRB in an open area away from any metal objects that may

limit the satellite coverage. 7 Keep hands, head and objects away from the antenna. 8 Transmission may be stopped by either turning the switch to the OFF position and

remounting the locking pin at the switch, or by remounting the beacon in its bracket. 9 If immersed in water to a depth of approximately 2 to 4m, the EPIRB will

automatically release from its retaining bracket, float to the surface and start to transmit.

Page 96: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 9 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: SAILOR RT 4822 VHF-DSC

PROCEDURE NO 2/004: DISTRESS CALLS

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION This procedure describes the steps to follow when required to carry out a DISTRESS call using the Sailor RT 4822 VHF-DSC radio transmitter.

PRECONDITIONS Power must be available to the unit.

Page 97: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 10 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 To make a distress call, if the unit is off, press ON/OFF. 2 Open DISTRESS lid. 3 Press DISTRESS until RELEASE is displayed on window. This takes 5 seconds,

during which the indicator lamps TX and ALARM will flash. 4 Wait for answer. The DISTRESS call is repeated automatically every 3.5 to

4.5 minutes. 5 When an acknowledgement is received, the display will indicate. Additional

information is available by using VIEW then MORE buttons on unit. 6 Press 16 and follow standard Mayday Procedure.

DISTRESS CALLS ARE ONLY TO BE TRANSMITTED

IN CASE OF AN EMERGENCY.

Page 98: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 11 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: SAILOR RT 4822 VHF-DSC

PROCEDURE NO 2/005: BASIC OPERATION

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The following details the basic operation of the Sailor RT 4822 VHF-DSC radio. For a detailed description, refer to BON/1EA1204/INVSAT/000006: Main Radio Plant.

PRECONDITIONS Power must be available to the unit.

Page 99: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 12 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 To turn on, press the ON/OFF button. In UNIT OFF mode, the VHF set is remotely controlled.

2 To activate the VHF functions if not active, press the TEL/DSC or Key 16. 3 To listen for telephony calls (according to international rules, all ships shall monitor

Channel 16 constantly), select Channel 16 by pressing Key 16. 4 Set the squelch level by means of the button, step down squelch level until noise is

heard on a free channel then step up to a level where just silent. 5a To receive a telephony call when your call name is heard on the loudspeaker:

(i) Unhook the handset and press the PTT key on the handset. (ii) To answer the call say <the name of the calling station> THIS IS <your

station name>. (iii) To suggest a channel say CHANNEL <suggested channel number>. (iv) Switch to the agreed channel and communicate. Press the PTT key when

talking only. If on a simplex channel say OVER every time you have completed talking.

5b To make a telephony call, select Channel 16 or another channel specified or agreed upon: (i) Unhook the handset. When speaking, press the PTT key. (ii) Make the call <called station name (3 times)> THIS IS <your station name

(3 times)> OVER. (iii) Release the PTT key to listen. (iv) When answered, agree upon a channel, switch to the channel and

communicate. Press the PTT key when talking only. If on a simplex channel say OVER every time you have completed talking.

Page 100: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 13 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: SAILOR RT 4822 VHF-DSC

PROCEDURE NO 2/006: BASIC DSC OPERATION

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The following details the basic DSC operation of the Sailor RT 4822 VHF-DSC radio. For a detailed description, refer to BON/1EA1204/INVSAT/000006: Main Radio Plant.

PRECONDITIONS Power must be available to the unit.

Page 101: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 14 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 To switch between the TEL and DSC screens, press the TEL/DSC button. 2 The Rx LOG button opens the screen menu where all DSC calls are stored for up to

48 hours. In this menu, CALLS or ALARM CALLS can be read separately and sorted according to time of reception.

3 The Tx CALL button opens the DSC transmitter menu. From here it is possible to make simple calls (SHORE, SHIP, ALL SHIP) and more complicated calls including special category and tele-commands (EXTENDED).

4 The ADDR BOOK button opens the address book menu. An ADDR BOOK call is a complete DSC call including a name. It is possible to transmit, add or delete calls from here.

5 The TEL/DSC button switches back to the TEL screen from the DSC screen. 6 The DSC display operation features a self-explanatory menu-driven system, the

display guides the user by textual instructions. The function of each soft key placed to the right is displayed on the screen.

7a To call a ship, press Tx CALL, select SHIP from menu and key in the 9-digit MMSI number of the wanted vessel or go to the submenu for the stored number.

Key in to ACCEPT the channel, then press SEND. You will see a flashing message ‘Call in Progress’ and ‘Waiting for Acknowledgement’.

Wait for an answer. 7b To receive an individual call, lift the handset to connect to the caller or press VIEW

to read out the call. Press MORE to view second part of call. Press CONNECT to change to telephony mode and set channel. Lift handset and start talking. 7c To call a shore station, press Tx CALL, select SHORE from menu and key in the

9-digit MMSI number of the coastal station and key ACCEPT or go to the submenu. A pre-programmed coast station can be selected.

Key in the phone number then ACCEPT. Key SEND to transmit the call. You will see a flashing message ‘Call in Progress’

and ‘Waiting for Acknowledgement’. 7d To call a telephone number directly, press Tx CALL, select SHORE from menu

and then key ACCEPT. Key in the phone number then ACCEPT to accept the number and ACCEPT again

to transmit the call. You will see a flashing message ‘Call in Progress’ and ‘Waiting for Acknowledgement’.

8 For more detailed instruction on the use and operation of the Sailor RT 4822 VHF-DSC unit consult Invsat Data Book ‘Marine Radio and GMDSS Equipment’ Document No 10755.

Page 102: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 15 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: SAILOR C4901 MARINE VHF REMOTE CONTROL HANDSET

PROCEDURE NO 2/007: BASIC OPERATION OF SAILOR C4901 HANDSETS

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION There are two remote control handsets for the Marine Sailor C4901 VHF radio, one located on the CCC and the other in the Marine Supervisor’s office. The remote Sailor C4901 VHF control handsets are connected directly to the transceivers via local JBs. This procedure covers the basic operation of the handsets.

PRECONDITIONS The unit is supplied from the SPARC-bus interface with a 12V dc power supply and a 630mA fuse.

Page 103: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 16 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

To make a quick DSC DISTRESS call: 1 If the unit is off, press ON/OFF. 2 Unhook the handset. 3 Open DSC DISTRESS lid. 4 Press DISTRESS until RELEASE is displayed on window. This takes 5 seconds,

during which the indicator lamps TX and ALARM will flash. 5 Wait for answer. The DISTRESS call is repeated automatically every 3.5 to

4.5 minutes. 6 When an acknowledgement is received, display will indicate dSC DIST-ACK.

To view the call, press Rx LOG button then SELECT. 7 To enter VHF mode press 16, lift handset and follow standard Mayday Procedure.

DISTRESS CALLS MUST ONLY BE TRANSMITTED IN THE EVENT OF

AN EMERGENCY.

8a To receive telephony calls, when your call name is heard on the loudspeaker:

(i) Unhook the handset and press the PTT key on the handset. (ii) To suggest a channel say CHANNEL <suggested channel number>. (iii) Say OVER and release the PTT key to let the caller accept the proposed

channel number. (iv) Switch to the agreed channel and communicate. Press the PTT key when

talking only. If on a simplex channel say OVER every time you have completed talking.

For short distance communication, use 1W output. 8b To make a telephony call, select Channel 16 or another channel specified or

agreed upon: (i) Unhook the handset. When speaking press the PTT key. (ii) Make the call <called station name (3 times)> THIS IS <your station name

(3 times)> OVER. (iii) Release the PTT key to listen. (iv) When answered, agree upon a channel, switch to the channel and

communicate. Press the PTT key when talking only. If on a simplex channel say OVER every time you have completed talking.

Page 104: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 17 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Step Action

9 VHF channel selection is carried out by one of three ways – numeric key selection, use of next channel function to advance channels one by one, and finally by quick select key (limited use).

10 The handset dual watch facility is set up as follows. To set a dual watch with Channel 6 and Channel 16 as priority, first select Channel 6.

11 Press SHIFT and DW. DW will show when a Dual Watch is in progress. The priority channel is shown in the bottom right corner of the display.

12 To stop a dual watch, either press SHIFT and DW or push the PTT button on the handset. The system resumes VHF and will start transmitting on Channel 6.

13 Select Channel 16. The system will resume on VHF Channel 16.

Page 105: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 18 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: SAILOR C4901 MARINE VHF REMOTE CONTROL HANDSET

PROCEDURE NO 2/008: BASIC DSC OPERATION OF SAILOR C4901 HANDSETS

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION DSC signals will normally be received on Channel 70. The VHF set will constantly monitor this channel for incoming calls.

PRECONDITIONS The unit is supplied from the SPARC-bus interface with a 12V dc power supply and a 630mA fuse.

Page 106: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 19 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 When a DSC call is received, the handset will notify according to the kind of call received.

2 The handset will display DSC RECEIVED, the call indicator lamp will flash and the speaker will announce the call.

3 The lower part of the display will toggle the call information. 4 Unhook the handset to transmit a DSC acknowledgement call to connect the

initiating party to the proposed VHF working channel. 5 When acknowledgement has been transmitted, the handset automatically switches

to telephony mode, ready for VHF communications on the proposed channel. 6 Start communications as normal. 7 The DSC display operation features a self-explanatory menu-driven system,

the display guides the user by textual instructions. The function of each soft key is displayed on the screen.

8a To call a ship, press Tx CALL, press arrow rightuntil STN* is displayed. Key in the 9-digit MMSI number of the ship station to be called.

To select the MMSI number, press arrow right. To transmit the DSC call, press SEND CALL. The message dSC SEND CALL will be displayed.

When transmitted the display will show dSC WAIT ACKN.

8b To call a shore station, press Tx CALL, press arrow up twice to dSC SHORE, press arrow rightto dSC STN 00 and key in the 9-digit MMSI number of the coastal station to be called.

To select the MMSI number, press arrow rightthen SELECT.

To enter telephone number, press arrow up to dSC NO PHONE, then press arrow right to dSC ADD PHONE and key SELECT.

Key in the phone number then press the right arrow twice. Key SEND to transmit the call. You will see a message dSC WAIT ACKN. 9 To view all DSC call contents, press Rx LOG and view all contents by entering the

Rx LOG menu, using the SELECT key to step through the call information. 10 For more detailed instruction on the use and operation of the Sailor RT

4822 VHF-DSC unit, consult Invsat Data Book BON/1EA1204/INVSAT/000006: Main Radio Plant.

Page 107: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 20 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: SAILOR HC4500 MF/HF CONTROL UNIT

PROCEDURE NO 2/009: DISTRESS CALL FROM SAILOR HC4500 MF/HF

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The Sailor System 4000 GMDSS comprises a 250W MF/HF HC4500 maritime radiotelephone with built-in DSC and radiotelex functions. The unit provides simplex and semi-duplex SSB radiotelephone communications in the maritime mobile frequency bands between 1.6 and 30MHz.

PRECONDITIONS Power should be available to all units.

Page 108: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 21 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 To make a quick distress call, open DISTRESS lid. 2 Press the set DISTRESS button until RELEASE is displayed on the screen.

The undesignated distress call will be sent by default on 2187.5kHz. 3 The distress call will be repeated every 5 minutes on the same distress frequency. 4 Wait for answer. When answered, display will show DISTRESS

ACKNOWLEDGEMENT RECEIVED from ‘receiving station identification’. Press softkey VIEW to read the contents of the call eg:

• Rx 2182.0kHz

• Tx 2182.0kHz 5 Press 2182 distress frequency key, lift handset, press PTT and follow Mayday

Procedure. 6 To switch to the two-tone alarm signal display, press SHIFT-ALARM keys.

Transmission of the two-tone alarm signal will continue for 45 seconds or until stopped manually by pressing the STOP key in the frequency display. When the alarm signal ceases, press the handset key and transmit your distress message by speaking into the handset in a clear and calm voice. Note: The two-tone alarm signal generator is intended for alerting ships not yet

equipped with DSC equipment. It may be used only to announce a distress message and primarily on a frequency of 2182kHz in AM telephony mode.

7 When a DSC distress call is received, your screen will automatically display DISTRESS CALL RECEIVED. Press VIEW to read out the call. Press MORE to view the second part of the call. Press ACK/REPLY to send distress acknowledgement or distress relay. Press SETUP to return to the TEL screen with the appropriate radio distress frequency, in this case 2182kHz. Press AGAIN to view the first part of the call.

8 If the ship in distress is within a reachable distance, press 2182 and listen to subsequent information.

Page 109: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 22 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: SAILOR HC4500 MF/HF CONTROL UNIT

PROCEDURE NO 2/010: BASIC FUNCTIONS OF THE SAILOR HC4500 MF/HF CONTROL UNIT

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The Sailor System 4000 GMDSS comprises a 250W MF/HF HC4500 maritime radiotelephone with built-in DSC and radiotelex functions. The unit provides simplex and semi-duplex SSB radiotelephone communications in the maritime mobile frequency bands between 1.6 and 30MHz.

PRECONDITIONS Power should be available to all units.

Page 110: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 23 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 To switch ON/OFF, locate and push ON/OFF button. 2 The backlight can be altered in five steps from zero to maximum by pressing the

SHIFT-DIM keys. 3 The loudspeaker may be switched ON/OFF by operation of the SHIFT-SPK keys. 4 Volume control is achieved by rotation of the VOL button. 5 Squelch may be switched ON/OFF by operation of SHIFT-SQ keys. When the

squelch is ON, the receiver output is muted in speech pauses. 6 The transmitter POWER level is adjusted by SHIFT-PWR in three levels. 7 Telephony channel display menu functions are aided by four soft keys positioned

down the right-hand side of the display. Channel numbers may be selected by soft key or may be keyed in directly from the keyboard.

8 The frequency display allows keying in of either Rx or Tx frequency directly from the keyboard.

9 The unit may be tuned manually by operation of the TUNE button to adjust the frequency or RF gain of the amplifier. When TUNE is selected, frequency may be tuned in 1kHz (AM), 100Hz steps (SSB) or 500Hz steps (telex). When CLFR is selected, the frequency is tuned in 10kHz steps. When RF-G is selected the button acts as a manual RF-gain tuning facility, with AGC off.

10 The station table display provides a series of soft key options for selecting the station and switching to channel display for the choice of channel number, returning to the channel display without selecting the station or allows selection of the previous/next station.

11 To listen for calls, coast stations transmit traffic lists consisting of call signs/names of the ships for which they have traffic. The appropriate station should be selected, the channel on which traffic lists are transmitted should be selected and the loudspeaker switched on and the volume adjusted to the appropriate level.

12 To make a manual call, wait until transmission of the traffic list has finished and the channel is free. Call the coast station on the working frequency on which the traffic list was received or as instructed by the coast station.

Lift the handset. Press the PTT key. Say <called station’s name (3 times)>. THIS IS <your vessel’s name (3 times)>. OVER. Release the PTT key to listen. When answered follow instructions. You may be

asked for further identification and may be asked to go to another working channel.

Page 111: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 24 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: SAILOR HC4500 MF/HF CONTROL UNIT

PROCEDURE NO 2/011: DSC FUNCTIONS OF THE SAILOR HC4500 MF/HF CONTROL UNIT

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The Sailor System 4000 GMDSS comprises a 250W MF/HF HC4500 maritime radiotelephone with built-in DSC and radiotelex functions. The unit provides simplex and semi-duplex SSB radiotelephone communications in the maritime mobile frequency bands between 1.6 and 30MHz.

PRECONDITIONS Power should be available to all units.

Page 112: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 25 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 To switch between the DSC status and telephony display, press TEL/DSC key. The MF/HF set is equipped with two receivers, one for watch on the distress frequencies and the other for watch on the public DSC frequencies (calling watch). The calling watch receiver is only active in DSC mode, ie calling watch is automatically switched off when switching to the TEL screen. If calling watch is on and the user hooks on the handset, the control will automatically switch to the DSC status menu.

2 The Rx LOG button opens the screen menu where all DSC calls are stored. In this menu, NORMAL or DISTRESS calls can be read separately and stored.

3 The Tx CALL button opens the DSC transmitter menu. From here it is possible to make calls (SHORE, SHIP) including special category and telecommands.

4 An address book is accessible by pushing the ADDR BOOK key. An address book call is a complete DSC call. It is possible to transmit, add or delete calls from this menu.

5 Your set will be constantly scanning selected DSC channels for incoming calls. To receive an individual DSC call, lift the handset and press PTT to connect to the caller.

6 Alternately, press VIEW then MORE to display details. 7 Press SEND to transmit the reply, lift handset then start talking. 8 When a DSC distress call is received, your screen will automatically display

DISTRESS CALL RECEIVED. Press VIEW to read out the call. Press MORE to view the second part of the call. Press ACK/REPLY to send distress acknowledgement or distress relay. Press SETUP to return to the TEL screen with the appropriate radio distress frequency, in this case 2182kHz. Press AGAIN to view the first part of the call.

9 If the ship in distress is within a reachable distance, press 2182 and listen to subsequent information.

10 To call a ship/shore, press Tx CALL, select SHIP or SHORE from menu. 11 Key in the 9-digit MMSI number. 12 Accept the number. 13 Select the frequency on which the call is to be transmitted.

Note: When calling a coast station it is always the coast station that selects the working frequency for the following communication.

14 Select SEND to transmit the call. 15 You will see the message CALL IN PROGRESS and WAITING FOR ANSWER,

then communicate as detailed previously in Step 5.

Page 113: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 26 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: SAILOR HC4500 MF/HF CONTROL UNIT

PROCEDURE NO 2/012: OPERATION OF THE GDMSS TELEX PRINTER

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The GMDSS radiotelex transmitter is used for handling transmissions/reception of telex messages over the radio. The terminal consists of a printer, a keyboard and a display console connected to the transceiver control unit that provides the interface to the DSC/telex modem located in the transceiver unit. The keyboard is equipped with an affixed template for function keys and indicator lamps. This procedure describes the operation of the unit.

PRECONDITIONS • The printer, keyboard and console are connected as per manufacturer’s instructions

• All systems are supplied with suitable power

Page 114: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 27 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 The printer power indicator light shows the power is ON when lit. 2 Pushing the SELECT button after the printer power is on places the printer in

‘de-select’ mode. The computer cannot communicate with the printer, so to return to ‘select’ mode, simply press the button again.

3 The PITCH button allows manual character pitch selection. The appropriate lamp lights upon selection.

4 The MODE button refers to the print quality selected. 5 PAPER LOCK/RELEASE LEVER allows you to adjust the paper. 6 The PAPER GAP ADJUSTMENT selects the use of fan-fold or single sheet paper. 7 For detailed instruction on printer operation, refer to BON/1EA1204/

INVSAT/000006: Main Radio Plant.

Page 115: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 28 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: SAILOR HC 4500 MF/HF TELEX CONTROL UNIT

PROCEDURE NO 2/013: OPERATION OF THE GDMSS TELEX SYSTEM

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The GMDSS radiotelex transmitter is used for handling transmissions/reception of telex messages over the radio. The terminal consists of a printer, a keyboard and a display console connected to the transceiver control unit, which provides the interface to the DSC/telex modem located in the transceiver unit. The keyboard is equipped with an affixed template for function keys and indicator lamps. This procedure details the operation of the telex system.

PRECONDITIONS • The printer, keyboard and console are connected as per manufacturer’s instructions

• All systems are supplied with suitable power

• A PCP717 modem board is installed in the MF/HF receiver

Page 116: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 29 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

To Create an Edit Ship Telex Subscriber Form: 1 Switch on unit (radiotelex starts up automatically) then press F6. 2 Select NEW SUBSCRIBER then type in subscriber name. 3 Select F2, Ship Telex to display the Edit Ship Telex Subscriber Form. 4 The function keys provide a means of selecting and modifying text. 5 Fast keys are a combination of the ALT and a FUNCTION key. They may be

changed as part of the unit setup. 6 Certain areas of the radiotelex system are password protected. Such areas will

display a request for a password when required. 7 Radiotelex has a facility to select either an ARQ (telex) or an FEC terminal. 8 A data backup should be made at regular intervals, eg every 24 hours. Prior to

making a backup disk, to keep the backup as short as possible it is advised that logged messages are checked and any that are not considered to be important are deleted. Also delete the traffic history unless it contains important information.

9 Should the software be installed from a hard disk, a backup may only be necessary at an initial stage after all relevant subscribers have been created and set-up changes have been performed.

10 Two types of transmission concepts are available, manual and automatic. It is recommended that automatic transmission is used as radiotelex will detect a free signal by automatically scanning and finding a free channel.

11 To go to the transmission forms, press CTRL-C then press F3Tx. To toggle between automatic and manual transmission forms, press F4 and enter data. To initiate a transmission, press F2.

12 Further details on how to set up radiotelex facilities can be found in BON/1EA1204/ INVSAT/000006: Main Radio Plant.

Page 117: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 30 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: ICS ELECTRONICS NAV5 NAVTEX RECEIVER

PROCEDURE NO 2/014: SET UP NAVTEX NAV5 RECEIVER

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION Navtex is a method of transmitting navigational warnings and weather forecasts from designated coastal radio stations. All English language transmissions are made on 518kHz and each station is allocated several time slots during the day when it is permitted to transmit. The Navtex should be set up to provide only information and message categories from stations relevant to your area and particular circumstances. Unwanted station signals and messages may be deselected as described in the following section. Currently there are no Navtex stations in Nigeria. This procedure describes how to set up the Navtex receiver.

PRECONDITIONS • Switch on the power to the NAV5 by pressing the ‘P’ power button

• The LCD display will illuminate and the NAV5 is now ready to receive Navtex messages and is also ready for set-up

Page 118: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 31 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 To enter the set-up mode, press the button. This brings up the transmitting station selection display and will show the letters of the alphabet.

2 Press followed by either the or the buttons. One push of either button will select, a second push will de-select. De-selected stations will be indicated by a dash (-). Within an area, each Navtex transmitting station has its own identification letter. A list of stations with their associated letters has been provided in the NAV5 User Guide in the BON/1EA1204/INVSAT/000020: Navtex Receiver.

3 If you do not know the stations which cover your area, start by leaving all stations selected.

4 Once you have completed the Navtex station selection, press to change to the message category selection screen.

5 Message categories are identified by a single letter and are shown in Table 2.2 in Part 1 Section 2.

6 Pressfollowed by either the or the buttons. One push of either button will select, a second push will de-select. De-selected categories will be indicated by a dash (-). Note: International regulations prevent message categories A, B, D and L from

being de-selected.

7 Press to store the Navtex station and message category selected.

Page 119: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 32 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: ICS ELECTRONICS NAV5 NAVTEX RECEIVER

PROCEDURE NO 2/015: PERFORM A SELF-TEST ON THE NAVTEX NAV5 RECEIVER

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION Navtex is a method of transmitting navigational warnings and weather forecasts from designated coastal radio stations. All English language transmissions are made on 518kHz and each station is allocated several time slots during the day when it is permitted to transmit. The Navtex should be set up to provide only information and message categories from stations relevant to your area and particular circumstances. Unwanted station signals and messages may be de-selected as described in the following section. The self-test function may be run if there are any doubts as to whether the NAV5 is working correctly. This procedure describes how to carry out a self-test on the receiver.

PRECONDITIONS • Switch on the power to the NAV5 by pressing the ‘P’ power button

• The LCD display will illuminate and the NAV5 is now ready for self-test and is also ready to receive Navtex messages

Page 120: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 33 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 Self-test is selected by holding down the ‘F’ button. The NAV5 will print out the test results then will return to normal operation.

2 Should any item on the self-test fail, turn the NAV5 off then on again and repeat the test. Should the item fail a second time, call your supplier for advice or call the ICS technical helpline for assistance (telephone number +44 (0) 1903 738706).

Page 121: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 34 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: ICS ELECTRONICS FAX 4 WEATHER FAX RECEIVER

PROCEDURE NO 2/016: OPERATION AND TUNING OF FAX 4 WEATHER FAX RECEIVER

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The output from the FAX 4 unit should be fed to an inkjet or laser printer as per manufacturer’s instructions. This procedure describes the operation and tuning of the weather fax receiver.

PRECONDITIONS • A 12V dc power supply is required for this unit

• The unit should be plugged into a compatible inkjet or laser printer

Page 122: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 35 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 The power button turns the FAX 4 on and off. 2 If the printer is ready and on line, the following message will print: ICS Electronics Ltd FAX 4 V1 Printer: Type – Self-test: Passed 3 The START/STOP button manually starts and stops the printing of the chart. Only

use this control if reception of an automatic start or stop signalling tone is missed. The correct alignment of the chart on the paper is not automatic if reception is manually started.

4 To tune the receiver it is important to set the receiver for USB (upper sideband) mode.

5 First select an appropriate weather facsimile station from the Facsimile Stations List. 6 Determine the frequency/frequencies to be used. 7 It is then necessary to tune an ‘offset’ 1.9kHz lower than the listed frequency,

eg for a listed frequency of 4307.0kHz, tune the receiver to 4305.1kHz (not all stations transmit on a continuous basis therefore it may be necessary to wait).

8 Before the start of a new chart, a continuous tone will normally be transmitted. This tone will normally be white. Use this signal to fine tune the receiver until the black indicator goes out and the white indicator stays on. Note: Some stations transmit a black tuning tone. If a black tone is transmitted then

the receiver must be tuned until the white indicator goes out and the black indicator stays on.

9 Use the manual START/STOP button to override automatic new chart detection. This may be necessary if radio reception is poor and the FAX 4 is unable to detect a valid start signal. One press will make the printer load a new sheet of paper, if required, and start printing using the Index of Co-operation (IOC) default settings of 576 and 120rpm.

10 At the end of a chart an automatic stop tone will be sent. In times of poor radio reception the tone may not be detected and the printer may require to be stopped manually. To do this, push the START/STOP button once to terminate the map and eject the printed paper chart from the printer.

11 The unit may be wired to a remote timer to facilitate printing of weather charts when the receiver is unmanned. Timer mode is selected when the receiver’s time clock or a separate timer switch opens the FAX 4 timer link connections. Flashing of the power indicator indicates that the timer mode of operation is active.

12 It is possible to temporarily override standby mode by pushing the START/STOP button once. When reception of the chart is complete then the FAX 4 will revert to timer standby mode.

13 To clear an error, check the printer for problems, paper jam etc and rectify the fault. If the error indicator is still illuminated then press the START/STOP button once to clear.

Page 123: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 36 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: VHF/AM GROUND-TO-AIR TRANSCEIVER

PROCEDURE NO 2/017: OPERATION OF THE VHF/AM GROUND-TO-AIR TRANSCEIVER

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION Each ground-to-air transceiver module consists of one separate Jotron TA7450/25/10 transmitter unit, one power supply unit and one Jotron RA-7202 ground-to-air receiver module. The transmitter and receiver are operated in a similar fashion as per the following procedure.

PRECONDITIONS • Power supplies should be available to all units

• This equipment should only be operated by personnel trained in ground-to-air communications procedures

Page 124: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 37 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 When the module is switched on, the receiver display will first show RA7202, then the version number, the serial number and finally a display of the operating frequency. The operating frequency is shown with six digits according to the ICAO standard, eg 126.100.

2 The menu is divided into three sections. The first section the user encounters is the main menu. The user can enter the main menu by pressing the ENTER button. The different submenus may be viewed by use of the UP and DOWN buttons, and accessed by the ENTER button. In this section, the receiver frequency may be changed and you may read data from the test section, store and recall frequencies and adjust display brightness.

3 To access the self-test submenu the main menu must first be accessed by pressing the ENTER button. The different submenus may then be viewed by use of the UP and DOWN buttons and the self-test menu accessed by the ENTER button when the text displays SELF-TEST. The display will toggle automatically between the different measurements, or one in particular may be selected manually by pressing the UP or DOWN buttons.

4 Another main menu submenu will allow the user to change the transmitter frequency. The frequency change menu may be located in the main menu by pressing the ENTER button. The different submenus may be viewed by use of the UP and DOWN buttons and the frequency change menu accessed by the ENTER button when the text displays FREQ. The UP and DOWN buttons may then be used to increase or decrease the frequency in steps as required. When the wanted frequency is set, pressing the ENTER button will return you to the main menu.

5 By stepping through the main menu, the recall menu RCL-- may also be accessed. This menu displays the channel and the frequency set into that channel. From the RCL-- menu, a submenu may be accessed by pressing the DOWN button when the display shows RCL--. The menu STORE will then be displayed. To allow a specific memory location, the UP button is pressed until the desired channel is shown on the display – a specific memory location between 1 and 99 can be programmed with the operating frequency.

6 The brightness of the display may also be adjusted by stepping through the main menu. When BRIGHT- is shown, the intensity of the display may be adjusted by using the UP and DOWN buttons to alter the settings between 0 and 6. The ENTER button stores the setting and returns to the main menu.

7 The second section of the menu, known as the ‘settings menu’, can be accessed by depressing the UP and ENTER buttons when the FREQUENCY is being displayed. The parameters in this section are seldom changed. Note: It is important that any adjustment is made carefully as wrong values can

have negative effects on the performance of the receiver. 8 The third section of the menu is called the configuration menu and can be accessed

by depressing the UP button and the ENTER button whilst the power is turned on. This menu contains options that are only changed during service and installation, and should therefore only be used by a suitably qualified technician.

Page 125: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 38 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Step Action

9 Full details of the menus and submenus are found in the Invsat Aeronautical BON/1EA1204/INVSAT/000013: Aeronautical Radio.

Page 126: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 39 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: AERONAUTICAL VHF RADIO SYSTEM

PROCEDURE NO 2/018: SAFE OPERATION OF HAND-PORTABLE UHF IS RADIOS

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION During normal use, this type of radio will subject you to radio energy substantially below the level where any kind of harm is reported. Sensible precautions should, however, be taken and these are detailed in this procedure.

PRECONDITIONS Hand-portable UHF IS radios should only be operated by personnel licensed in ground-to-air communications procedures, in accordance with CAP 452 ‘Aeronautical Radio Station Operators Guide’.

Page 127: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 40 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

DO NOT HOLD THE RADIO WITH THE ANTENNA VERY CLOSE TO,

OR TOUCHING, EXPOSED PARTS OF THE BODY, ESPECIALLY FACE OR EYES, WHILE TRANSMITTING.

1 The radio will perform best when the microphone is 5 to 8cm away from the lips and

the radio is vertical. 2 Set unit to the assigned aeronautical frequency – HOLD. 3 Do not hold in the transmit (PTT) button when not actually transmitting. 4 Do not operate the radio near to unshielded electrically-detonated explosives. 5 Do not operate the radio in an explosive atmosphere unless it is certified for

such use. 6 Periodically inspect the radio and battery contacts. For example, when the radio and

battery has been used in harsh environmental conditions, ensure that both the radio and battery contacts are thoroughly cleaned and dried.

7 The battery should never be removed or replaced when the radio is in a hazardous location.

8 The radio should always be switched off prior to battery removal/fitting. 9 Do not expose the radio and battery to high temperatures. 10 Dispose of the battery in the approved manner.

Page 128: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 41 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: INMARSAT B SYSTEM

PROCEDURE NO 2/019: OPERATION OF THE INMARSAT B SYSTEM

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The Saturn Bm Marine is an Inmarsat B terminal which provides access to the international terrestrial telephone network providing telephone, data and telefax services. This procedure describes the operation of the Inmarsat B System.

PRECONDITIONS The power supply must be available to all units. The power switch on the back panel of the main control unit switches all basic units of the Saturn Bm terminal on/off.

Page 129: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 42 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 Activate the power ON/OFF switch. 2 To start a hemispheric scan for the selected satellite/ocean region, you must

initiate satellite searching. 3 Select SEARCH FOR SATELLITE by pressing Function 26. 4 Press ENTER to activate the search function. 5 Press ENTER again to actually start the satellite search. This may take a

few minutes. 6 Once complete, revert to IDLE by pressing ESC twice. 7 To observe antenna movement and signal strength, select ANT.REL POINTING

by pressing Function 28. 8 Press ENTER for readout. 9 To move the antenna manually, press ENTER and then arrow down/up to move

antenna in azimuth. 10 Press SHIFT and then move arrow down/up to alter antenna elevation. 11 Press ENTER to store new position. 12 Revert to IDLE mode by pressing ESC three times. 13 To read/set compass heading, select READ/SET by pressing Function 29. 14 Press ENTER and check heading. If required, adjust.

15 ENTER current gyro reading (0…360°). 16 Press ENTER again to verify the setting. 17 To make a telephone call, when the ‘ready for operation’ signal strength is given by

indication of up to three stars for best quality, key in the international call prefix 00, followed by the country code and the subscriber number, then initiate the call by pressing the HASH button (#).

18 To make a call through a selected LES, first key in the LES number, then press STAR and proceed as before by keying in the international call prefix 00, the country code and the subscriber number, then initiate the call by pressing the HASH button (#).

19 To clear the call when finished press ESC. 20 To make a distress call, lift the telephone handset.

21 Lift the flap over the DISTRESS button on the NERA distress unit. Press and hold down the DISTRESS button for at least 6 seconds.

22 Wait for the dialling tone. 23 Press the HASH button (#) to initiate your call. You can also select LES, eg 4#.

Page 130: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 43 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Step Action

24 When the RCC Operator answers, speak clearly and give the following message: MAYDAY MAYDAY MAYDAY THIS IS <vessel’s name and identity> CALLING ON INMARSAT FROM POSITION

<latitude and longitude or relative to a point of land>. MY INMARSAT NUMBER IS <IMN for the Saturn Bm telephone you are calling

from> USING THE <ocean region> SATELLITE. MY COURSE AND SPEED ARE <if relative, provide course and speed>. <The nature of your distress and assistance you require>. <Other information to help rescue units>. 25 End your message by saying OVER, which is the invitation for the RCC to reply. 26 Follow the instructions from the RCC Operator and, when requested, replace the

handset to await further calls. Keep the line clear so that the RCC can call you back when necessary.

27 The alarm buzzer and alarm indicator are activated when a distress call is received. When answering a distress call the alarm buzzers will stop and the alarm indicator lights will stay lit.

28 Pressing the ACKNOWLEDGE pushbutton on the telephone that rings will stop buzzers on all distress alarms. Pressing the button at other sites only stops the buzzer locally.

Page 131: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 44 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: HELICOPTER BEACON (NDB)

PROCEDURE NO 2/020: OPERATION OF THE HELICOPTER BEACON (NDB)

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION An NDB system for helicopters is installed in the CCR on B Deck. The system consists of dual transmitters operating on a frequency between 190 and 535kHz. An automatic transfer unit has been included to change from one transmitter to another in the event of a failure or change in VSWR. Between the transmitters and the helipad long-wire antenna is an antenna coupler, which acts as an automatic tuning unit to keep the antenna in tune with transmitters. A separate monitor receiver operates a set of contacts if the transmitter should fail or cease modulating whilst in service. A remote control unit allows the CCR to turn the NDB on or off without causing the monitor alarm to operate. The following procedure describes the operation of the beacon.

PRECONDITIONS • Read all manufacturers’ safety notices

• Power supplies should be available to the system

Page 132: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 45 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 Apply the ac power to the panel and place the power switch in the ON position. 2 If the power switch to the local radio beacon control panel is ON, then the ‘link data

update’ LED on the front of the panel should start to flash every 2 to 4 seconds. 3 Press and hold the primary transmitter select switch to the opposite position of the

primary transmitter currently indicated. 4 Within 5 seconds, the local radio beacon control panel should reply by switching

over the transmitters. The new primary transmitter LED should light and the switch can be released.

Page 133: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 46 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: TANKER ESD SYSTEM

PROCEDURE NO 2/021: OPERATION OF THE TANKER ESD SYSTEM

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION An intrinsically safe, UHF, FM hand-portable radio with antenna, battery, leather case and spare battery has been supplied for this system. The hand-portable radio is capable of sending a SELCALL signal from the shuttle tanker to the ESD UHF receiver unit mounted in the TER. The tones are decoded to produce a signal for use on the FPSO ESD system.

PRECONDITIONS • Read all manufacturer’s safety notices

• Ensure that the battery on the hand-portable unit is maintained fully charged

Page 134: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 47 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 To activate an ESD from the export tanker, press and hold the orange button on the top of the hand-portable radio for approximately 1 second. A series of five tone bleeps will be heard from the radio.

2 The ESD receiver on the FPSO should activate ESD 12V relay NAIS CB1F-M-12V for a period of 4 seconds and then revert to its original state.

Page 135: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 48 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: INTERNAL COMMUNICATIONS SYSTEM

PROCEDURE NO 2/022: OPERATION OF THE PUBLIC ADDRESS AND GENERAL ALARM (PAGA) SYSTEM

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION This procedure describes the operation of the public address and general alarm system.

PRECONDITIONS Either the A or B system must be fully operational.

Page 136: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 49 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 Select zone or multiple zones to be accessed and ‘Push to Talk’. Talk slowly, clearly and calmly into the microphone, do not shout.

2 To access the emergency control section of panel, lift flap and select function required.

3 To operate hazardous area PAGA panels, lift up the protective flap, push the button and speak slowly, clearly and directly into the microphone head. Do not shout.

Page 137: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 50 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: TELECOMMUNICATIONS EQUIPMENT

PROCEDURE NO 2/023: OPERATION OF THE AUTO TELEPHONE SYSTEM (PABX)

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The auto telephone system consists of a PABX central equipment rack with operator/maintenance console, 150 extensions and QSIG interface. The PABX includes call-logging software. Distribution of PABX extensions is made via a main distribution frame on B Deck and marshalling boxes. This procedure describes the operation of the auto telephone system.

PRECONDITIONS Power must be available to the system.

Page 138: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 51 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 To make an internal call from an office telephone, first pick up the handset and listen for the dial tone. If the tone is present then press the keypad buttons for the number required.

2 To make an external call, pick up the handset, listen for the dial tone, press keypad for outside line, listen for the dial tone again and when it is present, press the keypad buttons for the number required. Replace the handset when the call has been completed.

3 If you wish to redial the last number you called for any reason, then you can do so by use of the LR button on the keypad. To use this function, lift the handset, listen for the dial tone then press the LR button.

4 You can also save the last number dialled on the keypad if you wish. This enables you to make further calls without losing the number as happens with the last number redial store. To carry out this function, pick up the handset, listen for the dial tone, dial the number then press the SR button. To redial the saved number, pick up the handset, listen for the dial tone then press SR.

5 The microphone in the handset can be turned off to allow you to talk to a third party without the caller hearing you. Pressing the S button carries out this function and illuminates the lamp adjacent to the S button. Pressing the S button again turns the microphone back on again.

6 The RECALL or R button allows additional features to be added to the telephone function.

7 To call an internal number from the hazardous area telephones, lift the handset and press the keypad buttons for the number required. Replace the handset when the call has been completed.

8 On the hazardous area telephones, to operate the last number redial facility, lift the handset, listen for the dial tone then press the REDIAL key.

9 In noisy areas, the sound level on the receiver may be adjusted by operation of the ‘amplifier’ key. This key will increase the sound level in two steps of 6dB if required.

Page 139: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 52 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: ENTERTAINMENT SYSTEM

PROCEDURE NO 2/024: OPERATION OF THE MARINE TVRO SYSTEM

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The Marine Stabilised Television Receive Only (TVRO) system is part of the ship’s entertainment system. The system consists of a stabilised 2.4m satellite TVRO dish, which is suitable for simultaneous reception of horizontal and vertical polarised signals from the M-Net, PAS satellites. The following procedure describes the operation of the TVRO system.

PRECONDITIONS • Satellites transmit to limited areas. Therefore to receive any given satellite you must be

within the area (footprint) to which it is transmitting

• Not only must you be within the footprint of the satellite, you must also select the correct tracking frequency

• Select a channel with a frequency as close as possible to the frequency that you wish to receive. If multiple channels are to be viewed, select a channel at a middle frequency

Page 140: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 53 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 After powering up the unit, wait until the ‘auto restart’ has completed and the IMU status is ‘locked’.

2 Press the S key to select the satellite option. A window will open and provide you with a list of satellites.

3 Use the up and down arrows to select the desired satellite and press ENTER. 4 Another window will display a list of the channels (transponders-satellite

frequencies) available. 5 Select the desired channel/frequency and press the ENTER button. The ACU will

present a confirmation message. Press ENTER again, or to discard the selection press ESC.

6 Once the selection has been confirmed, the basic operation screen is updated and the ‘Acquiring a Satellite’ message will appear. The antenna will move to acquire the selected satellite.

7 Monitor the changes to the basic operation screen fields as the antenna moves to its new position. To confirm tracking, verify that:

• AGC level indication increases as the antenna acquires a signal from the satellite

• The antenna position indicators should stop and indicate minimal change within its step track sectors

• Current mode indicates step track 8 To shut down and stow the system select the STOW option from the basic menu

and the ‘Operational Modes’ display will appear. If you do not have the STOW option on the main menu, press the O key. After you press the O key, a request for a password will appear. Type in the password and press ENTER. This will take you to the operation screen. Press O and the ‘Operational Modes’ display will appear.

9 A window will appear to confirm your choice of ‘stow’ or go back to step track. Press ENTER to confirm.

10 The antenna moves to the pre-defined ‘stow‘ position and then halts. In this situation the IMU is unlocked and the antenna is not stabilised.

11 Open the ACU front panel and turn OFF the power switch. 12 Secure the power to the antenna.

Page 141: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 54 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: TELECOMMUNICATIONS

PROCEDURE NO 2/025: OPERATION OF THE CCTV SYSTEM

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION This procedure describes the operation of the CCTV system.

PRECONDITIONS Power must be available to enable operation of the system.

Page 142: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 55 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 The left-hand panel on the Visilynx keyboard provides quick access to the most commonly used camera control features.

2 The HOME POSITION button sends the camera to a pre-programmed position. 3 The PRESET POSITION button sends the camera to a specific pre-programmed

position identified by the preset position number N. 4 The PRESET SEQUENCE button starts a one-off sequence of preset positions. 5 The PRESET TOUR button starts a continuous preset tour. 6 Other functions provided are:

• WIPE – operates the windscreen wiper if fitted

• WASH – operates the windscreen wash facility if fitted

• AUTO IRIS – which allows the operator to switch between manual and auto iris control

• IRIS CLOSE – closes the lens to decrease the amount of light entering the camera. This will make the picture darker

• IRIS OPEN – opens the lens to increase the amount of light entering the camera. This will make the picture lighter

• LENS SLOW – a latched switch function that selects the lower lens speed for finite lens control

• FOCUS FAR – allows the lens to focus on distant objects

• FOCUS NEAR – allows the lens to focus on objects near to the camera 7 The keyswitch allows access to the main menu functions when in the

vertical position. 8 The keyswitch allows access to the programme setup menu when in the

horizontal position. 9 The right-hand panel on the keyboard provides access to the numerical keypad,

the ‘trackerball joystick’ pan and tilt controls and associated keys. 10 To select a specific monitor, press the monitor number N then the MONITOR key. 11 To select a specific camera, press the camera number N and then the

CAMERA key. 12 The ‘zoom out’ function button, when pressed, widens the angle of view to allow a

greater area to be viewed. 13 The ‘zoom in’ function button, when pressed, narrows the angle of view to allow a

close-up of a particular scene. 14 To operate the camera PAN and TILT controls the trackerball joystick is moved

up, down or sideways.

Page 143: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 56 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Step Action

15 The central panel of the keyboard has four multifunction softkeys down each side of the screen and another four along the bottom.

16 The SCROLL UP key (<) is used to display the next page.

17 The SCROLL DOWN key (>) is used to view the previous page. 18 The HELP key (?) provides an onscreen help function whereby if the HELP key is

pressed followed by any other key, a description of the specific key function is displayed on the screen.

19 The double chevron ESCAPE key is used to leave the current menu and return to the previous menu.

20 The VCR will normally be operated either automatically or from the Visilynx keyboard.

Page 144: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 57 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: TELECOMMUNICATIONS

PROCEDURE NO 2/026: OPERATION OF THE GYROCOMPASS UNIT

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The gyrocompass system is based on dual Raytheon Gyrocompasses mounted in the telecoms equipment room on E Deck. The gyrocompass system provides a heading indication referred to as true north. Via an absolute, coded scanning and transmission system, the gyrocompass system provides an absolute and clear transmission of compass heading reference via serial interface to repeater compass. The outputs of the gyrocompasses are fed via the gyro control unit to the various other systems requiring compass information. In addition, the control unit feeds the repeater and operator unit mounted in the CCR on B Deck. The following procedure details the operation of the gyrocompass system.

PRECONDITIONS Either mains or battery power must be available to enable operation of the system.

Page 145: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 58 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 The gyrocompass system is started up or stopped by operating the power switch on the 24V power supply.

Signalling During Operation

2 After switching on the gyrocompass, the digital display, which is visible through the window in the supporting plate, will appear.

3 During the heating phase, the digital display indicates the temperature of the supporting liquid.

4 After reaching the lower operating temperature of 45°C, the system is automatically switched on.

Speed Error Correction 5 The speed error is the difference between the course indicated by the gyrocompass

and the true course. The underlying causes of this error, which is governed by the ship’s speed, course and local latitude, are of the physical type. This speed error must be corrected as in BON/1EA1204/INVSAT/000003: Gyrocompass (Dual).

Signalling in Case Warnings have Occurred 6 After one or more warnings have occurred, the decimal point flashes for as long as

the warning is pending. Signalling in Case an Alarm has Occurred 7 Errors which have occurred within the Gyrocompass Standard 20 are indicated

in the digital display as an alarm, the follow-up system is switched off, the gyrocompass supplies no course values and all connected indicators follow the course change no more.

Switching Off the Sensor 8 The gyrocompass sensor is put out of operation by switching off the

24V power supply.

Page 146: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 59 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

SYSTEM/EQUIPMENT: TELECOMMUNICATIONS

PROCEDURE NO 2/027: OPERATION OF THE NAVIGATION AND SIGNAL LIGHTS SYSTEM

THE WHOLE OF THIS PROCEDURE MUST BE READ THROUGH AND FULLY UNDERSTOOD BEFORE CARRYING OUT ANY OF THE

FOLLOWING ACTIONS.

INTRODUCTION The navigation and signalling lights comprise all navaids including two foghorns. The navaid central control panel is provided with all control/alarm functions required to control/monitor the complete system. The panel also supplies the foghorns and lights with power. The following procedure describes how to operate the signal lights and foghorns.

PRECONDITIONS Either mains or battery power backup must be available to enable operation of the system.

Page 147: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 2 Equipment Operating Procedures OPRM-2003-0334 Page 60 of 60 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

PROCEDURE

Step Action

1 Ensure that a 230V ac power supply is available. 2 The battery charger on/off switch should be in the ON position. The battery charger

should start to operate. Upon failure of the battery charger, the system will continue to operate for a certain period with power from the battery bank.

3 With 24V dc battery voltage available and the lantern switch to ‘Auto’, a photocell will switch the lantern system on at sunset and off at sunrise. If a lamp in a lantern fails, the automatic lamp changer will operate and install a new bulb in position. This operation can take place up to six times. A lamp failure alarm will show on the control panel when the last lamp fails.

4 To clear the alarm after the bulbs have been replaced, push the panel RESET button.

5 With the lantern system selector switched to the ON position, the photocell is bypassed and the system will operate. With the switch in the OFF position, the lanterns will be switched off.

6 To operate the foghorn, turn the selector switch to the ON position. To stop the foghorn, turn the switch to the OFF position.

7 To operate the leading light, install the 24V dc power supply to the ESD control terminals and remove the supply when the light is not required.

Page 148: V34-Telecommunications.pdf

Shell Nigeria E&P Company Limited Bonga FPSO Plant Operating Procedures Manual Volume 34 – Telecommunications Unclassified

Part 2 Section 3 Supplementary Operating Procedures OPRM-2003-0334 Page 1 of 1 Issue 1.0 01-April-2004

Printed copies of this document may be obsolete. ‘Business Control Documents’ are online in SNEPCO Livelink.

Part 2 Operating Procedures

Section 3 Supplementary Operating Procedures

Procedure Number There are no Supplementary Operating Procedures associated with this document.