ROI-S04488 OPERATION 3-1 3. OPERATION This section provides inst ructions for operating the IDU. Included is information on the interface terminals, interface jacks, controls, indicators, test jacks, equipment start-up, and equipment shut-down. 3.1 Interface Terminals and Jacks The IDU has interface terminals and jacks to interconnect data, alarm and IF signals with ass ociated equipment. These interface terminals and jacks are located as shown in Fig. 3-1 and are used as described in T able 3-1. Caution: Do not connect b etween the NMS/RA termin als with the RS-485 cable, when PM CARD is mounted on the IDU, the protocol is set to RS-232C and the back-to-back connection between the NMS/RA terminal on the IDUs is performed. Fig. 3-1 Interface T erminal and Jack Locations IDU Without LAN option With LAN option TRAFFIC IN/OUT (CH1 to CH8) ALM/AUX ALM OW/DSC/ASC LA PORT NMS/RA TRAFFIC IN/OUT (CH9 to CH16) NMS LAN WS/SC LAN PORT1 PORT2 100M 100M IF IN/OUT CALL RESET MAINT IDU ODU SELV − PWR FUSE (7.5A) EOW PASOLINK + TRAFFIC IN/OUT (CH1 to CH8) ALM/AUX ALM OW/DSC/ASC LA PORT NMS/RA TRAFFIC IN/OUT (CH9 to CH16) NMS LAN WS/SC LAN IF IN/OUT CALL RESET MAINT IDU ODU SELV − PWR FUSE (7.5A) EOW PASOLINK +
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This section provides instructions for operating the IDU. Included isinformation on the interface terminals, interface jacks, controls, indicators,test jacks, equipment start-up, and equipment shut-down.
3.1 Interface Terminals and Jacks
The IDU has interface terminals and jacks to interconnect data, alarm andIF signals with associated equipment. These interface terminals and jacksare located as shown in Fig. 3-1 and are used as described in Table 3-1.
Caution: Do not connect between the NMS/RA terminals with the RS-485 cable, when PM CARD is mounted on the IDU, the protocol is set to RS-232C and the back-to-back connection between the NMS/RA terminal on the IDUs is performed.
Fig. 3-1 Interface Terminal and Jack Locations
IDU
Without LAN option
With LAN option
TRAFFIC IN/OUT (CH1 to CH8) ALM/AUX ALM OW/DSC/ASC LA PORTNMS/RA
TRAFFIC IN/OUT (CH9 to CH16)
NMS LANWS/SC LANPORT1 PORT2
100M 100M
IFIN/OUT
CALLRESET
MAINT
IDUODU
SELV
−
PWR
FUSE (7.5A)
EOW PASOLINK
+
TRAFFIC IN/OUT (CH1 to CH8) ALM/AUX ALM OW/DSC/ASC LA PORTNMS/RA
Note: Input[ ] indicates the input of housekeeping alarm.The figure means that same order of tens makes thesame pair e.g. 11/12 forms a pair. IDU side interfaceuses that of photo-coupler, then the photo-coupler actually turns ON if pair elements contact with eachother.Output[ ] indicates the output of housekeepingalarm. Figure means the same as in the Input. IDU side output uses the relay interface.
Pin 36 Input terminal of buzzer signal
Note: In back-to-back station, the buzzer informationtransmits to the next station.
Pin 37 Output terminal of buzzer signal
Note: In back-to-back station, the buzzer informationtransmits to the next station.
SEL V (LINE IN)
(Molex M5557-4R Connector, 4
Pins)
+20 V to +60 V/ −20 V to −60 V DC power input
Note: The range of DC power input depends on systemrequirement.
For the IDU listed in the following table, 75 ohms/unbalanced - 120 ohms /balanced impedance switching of 2 MB interface is applicable on thefront board as shown in Fig. 3-3.
Note: These switches are already set by factory setting according tocustomer requirement.
Procedure for equipment start-up and shut-down are described below.
3.3.1 Start-up
(a) Test Equipment and Accessories Required
• Agilent 34401A Digital Multimeter (or equivalent) with Test Leads
• Screwdriver
(b) Procedure
Step Procedure
1 Check that the LINE IN voltage is between +20 V to +60 V/ −20 V to −60 V with the digital multimeter, before connectingthe power connector to the IDU,
Note: The range of DC power input depends on systemrequirement.
2 Turn on the POWER switch on the IDU (refer to Fig. 3-3),
3 Allow equipment to warm up for at least 30 minutes.
Fig. 3-3 Location of Power Switch and LINE IN Connector
3.3.2 Shut-down
Step Procedure
1 Turn off the POWER switch on the front of the IDU.
The control of the IDU and ODU digital radio system can be carried outvia the LA PORT or NMS/RA of the IDU. Connect a Personal Computerto the IDU with an RS-232 cable. The specification of the requiredpersonal computer is listed below.
• Baud rate : 9600
• Data Length : 8
• Parity Check : none
• Stop bit : 2
• Flow control: none
• Emulation : VT100 Video Terminal
• Transmission:MS HyperTerminal*: Send line ends with line feeds : Yes
Local echo : No
• Receiving: CR : NoReturn on the right edge : YesForce incoming data to 7-bit ASCII : No
Notes: 1. MS : Microsoft * For Windows 95/98/Me/NT4.0/2000/XP
2. When Windows NT4.0 and MS hyper terminal is used,“Program Download” function is not available.
In this case, please use other terminal software.(e.g. TeraTerm Pro 2.3:http://hp.vector.co.jp/authors/VA002416/teraterm.html)
The pin assignment is shown in Fig. 3-4. The cable length of RS-232Cbetween the personal computer and IDU (MDP) equipment shall be less
Note: When the controlling or setting of own station are performed,
connect the cable to the LA PORT. When the controlling or setting of opposite station are performed, connect the cable to the NMS/RA port. But, if the following cases are applied, the NMS/ RA terminal can not be used.• The PM CARD is mounted on the equipment.• H BER alarm is issued.
Fig. 3-5 Equipment and Monitoring Setup
Step Procedure
Note: The keys, “0” to “9” are used for selection of the menuor entering values. “Enter” key is used for confirmationof entering values. “Esc” key is used for cancellation of entering values and display the higher rank menu.
2 Turn on the power on the PC. Then, operate the communicationsoftware (e.g. MS Hyper Terminal),
10 Press the “2” key and “Enter” key, then, following item isdisplayed,
Note: When AIS RCVD “off” is selected, AIS RCVD is not indicated under the input alarm state. When AIS RCVD“on” is selected, AIS RCVD is indicated under the input alarm state.
11 Press either “0” or “1” key and “Enter” key for setting, if not,press the “Esc” key,
12 Press the “3” key and “Enter” key, then, following item isdisplayed,
Note: When AIS SEND “off” is selected, AIS SEND is not indicated under the AIS state. When AIS SEND “on” isselected, AIS SEND is indicated under the AIS state.
13 Press either “0” or “1” key and “Enter” key for setting, if not,press the “Esc” key,
14 Press the “6” key and “Enter” key, then, following item isdisplayed,
Notes: Set to “on” for the following channels.
1. Restricted E1 channels by hardware, which areindicated by “# ”on the Setting display.
2. E1 channels which are not available to use when 10/ 100BASE-T(X) LAN is assigned. (see Table 3-2
Applicable Traffic Channel)
3. Reserved E1 channels.
2. AIS RCVD on/off (off)
AIS RCVD on/off (off:0 / on:1):
3. AIS SEND on/off (off)
AIS SEND on/off (off:0 / on:1):
6. Inhibit of not used channel alarm 1-16
(1: off 2 : off 3 :off 4 :off 5 :off 6 :off 7 :off8: off 9 :off 10:off 11:off 12:off 13:off 14:off
31 Press the “Enter” key, then, following Alarm table 2/2 appears,
Notes: 1. Alarms signals C1 to C4 will appear on the ALM/ AUX ALM terminals.C1: 1, 2 and 3 pinsC2: 4, 5 and 6 pinsC3: 7, 8 and 9 pinsC4: 10, 11 and 12 pins
2. The items which are applied alarm output areindicated with “OUT” and not applied alarm output are indicated with “–”.
3. The outputs which are shut off the signal output inmaintenance conditions are indicated with "MASK".
32 Enter item No. and press the “Enter” key for setting, if not, pressthe “0” key and “Enter” key to go back to the Setting menu,
33 When press the “1” key and “Enter” key in previous step 32,following Form setting for Item No.1 is displayed,
34 Press any “1” to “4” key for corresponding Form No. and“Enter” key,
35 When the “1” key and “Enter” key is pressed in previous step34, following confirmation is displayed,
36 Press the “1” key and “Enter” key for setting, or press the “0”
key and “Enter” key for cancel,
37 When pressed the “0” key and “Enter” key in previous step 36,following setting for other Form is displayed,
38 Press any “1” to “4” key for corresponding Form No. and“Enter” key for setting, or “0” key and “Enter” key for cancel,
39 Press the “2” key and “Enter” key. Repeat steps 31 to 38 foritems of 2 to 23 in step 30 for alarm setting, if not, press the “0”key and “Enter” key for cancel,
40 Press the “Esc” key, to go back to Setting menu,
41 On the Setting menu, enter 14 and press the “Enter” key, then,following item “Next items” is displayed,
44 Press the “1” key and “Enter” key, then, following item isdisplayed,
Notes: 1. The E1 channels are restricted transmission dependingon the throughput bit rate assignment of the LAN Port 1and port 2. (see Table 3-2)
2. The throughput bit rate for the Port 2 must be set lessthan Port 1 or the same value with Port 1.(i.e. Port 1 < Port 2 are not applicable).(see Table 3-2)
3. Full bandwidth assignment of the throughput for Port 2is not applicable. (e.g. Port 1: disable, Port 2: 4M in 2x 2MB system) (see Table 3-2).
45 Press any of “0” to “5” key and “Enter” key,
46 Press the “2” key and “Enter” key, then, following item is
displayed,
47 Press any “0” to “8” key of the desired mode and “Enter” key,
48 Press the “3” key and “Enter” key, then, following item isdisplayed,
49 Press the “0” or “1” key and “Enter” key for setting,
50 When 2M is applied for throughput bit rate, press the “4” keyand “Enter” key, then, following item is displayed,
51 Press the “0” or “1” key and “Enter” key for setting,
Note: When “1” is selected, G.704 E1 formatting is applied tothe LAN signal.
52 When press the “5” key and “Enter” key, “1” is selected forFraming on, then, following item is displayed,
Note: When “1” is selected, LAN signal is multiplexed withdata signal excluded CAS channel area, but “0” isselected, LAN signal is multiplexed with data signalincluded CAS channel area.
53 Press the “0” or “1” key and “Enter” key for setting,
54 When press the “6” key and “Enter” key, “1” is selected forFraming on, then, following item is displayed,
55 Press the “0” or “1” key and “Enter” key for setting,
56 Press the “Esc” key to go back to the LAN Setting menu, andpress the “3” key and “Enter” key, then, following item isdisplayed,
Note: The local LAN port is shut off by the radios system alarmor far-end LAN Link failure, when “enable” is selected.
57 Press the “0” or “1” key and “Enter” key,
58 Enter 99 and press the “Enter” key to exit the LCT menu.
This section provides instructions for periodic maintenance and correctivemaintenance of the IDU. Included is information on precautions, testequipment and accessories, periodic maintenance and correctivemaintenance.
4.1 Precautions
The following precautions must be carefully observed duringmaintenance.
Danger: The − 43 V DC power is superimposed on the center conductor of the coaxial cable between the IDU and ODU.Connecting a measurement set may damage that set and
touching the coaxial cable core may cause electrical shock.So, turn off the power switch on the IDU before
disconnecting coaxial cable between the IDU and ODU.
Caution: To protect the internal circuits against electrostatic discharge, engineers are requested to wear a wrist band and connect it to the frame ground terminal (FG) for Electrostatic Protection (ESP) before detaching the shield cover (see Fig. 4-1).
Caution: Do not turn on the power of the IDU leaving cable connection between the PC and RA PORT of the IDU.
Fig. 4-1 Location of the ESP Terminal.
(a) Before beginning maintenance, notify the opposite station thatmaintenance is about to begin.
(b) After equipment start-up, allow the equipment to warm up for at least30 minutes.
(c) After completing the maintenance operation, restore all connectionsto normal.
(d) During maintenance, the IDU is set to maintenance condition using aPC as follows:
7 Press the “2” key and “Enter” key, The following menu will bedisplayed,
Notes: 1. “-” indication signifies control off condition,2. “*” indication signifies control on condition,3. “#” indication signifies restricted channel condition,4. In case the loop back control has been applied, the “Z”
is displayed,5. The FE loopback control is unavailable for the channel
which is inhibited by “not used channel alarm”.
8 Press the “1” key and “Enter” key, The following menu will bedisplayed,
9 Press the “1” key and “Enter” key, Then, the MAINT indicatoron the IDU should light,
11 Press the “0” key and “Enter” key. Then, the MAINT indicatorshould go out. The following menu will be displayed,
12 Enter 99 and press the “Enter” key to exit maintenance of thePasolink.
4.2 Test Equipment and Accessories
The test equipment and special accessories described in Table 4-1 arerequired for system maintenance. If recommended test equipment andaccessories are not available, equivalents may be used.
4.3 Periodic Maintenance
To ensure continued satisfactory operation of the equipment, perform thefollowing maintenance procedure once a year.
(a) Test Equipment and Accessories Required
Maintenance
1. MAINT(Normal)
2. FE loop back ctrl 1-16 (ctrl:----------------)
(ans:-----------------)
3. NE loop back ctrl 1-16 (ctrl:----------------)
(ans:-----------------)4. BER AIS on/off (on)
5. MOD CW on/off (off)
6. power mute (off)
00. Menu
99. Exit
Select Item No. :
Table 4-1 Test Equipment and Accessories Required
Test Equipment/Accessory Type/Ordering CodeQ’ty
Req’d
Digital Multimeter with Test Lest Leads Agilent 34401A 1
• Agilent 34401A Digital Multimeter with Test Leads
• Screwdriver
(b) Procedure
Step Procedure
1 Connect a digital multimeter to SELV (−) and SELV (+)terminals above the power cable input. Confirm that the meterindication is as described in Table 4-2,
Note: The range of DC power input depends on system requirement.
4.4 Corrective Maintenance
Corrective maintenance in the field is described, and covers fault isolation,equipment replacement and alignment. When the equipment is faulty, itshould be replaced with a spare. Replacement for the IDU is at the
equipment-level. During corrective maintenance, carefully observe theprecautions given in paragraph 4.1 until alignment is completed.