Samsung MBS (LTE) Alarm Manual for SLR 3.1_v2.0

Radio

Acc

ess

Netw

ork

Samsung MBS(LTE) Alarm Manual

for SLR 3.1

Provides a detailed reference and resolution guide for alarms that can be raised on the Samsung MBS(LTE). This includes the CDU, SDU and radio units.

Document Version 2.0 October 2014

Document Number: 2600-00GAEAGAB

2014 SAMSUNG Electronics Co. Ltd.

All Rights Reserved. No part of this document may be photocopied, reproduced, stored in a retrieval

system, or transmitted, in any form or by any means whether, electronic, mechanical, or otherwise

without the prior written permission of SAMSUNG Electronics Co., Ltd.

No warranty of accuracy is given concerning the contents of the information contained in this

publication. To the extent permitted by law no liability (including liability to any person by reason of

negligence) will be accepted by SAMSUNG Electronics Co., Ltd., its subsidiaries or employees for

any direct or indirect loss or damage caused by omissions from or inaccuracies in this document.

SAMSUNG Electronics Co., Ltd. reserves the right to change details in this publication without notice.

SNMTC-v2-0214

This manual should be read and used as a guideline for properly installing and/or operating the

product. Owing to product variations across the range, any illustrations and photographs used in

this manual may not be a wholly accurate depiction of the actual products you are using.

This manual may be changed for system improvement, standardization and other technical

reasons without prior notice.

Samsung Networks documentation is available at http://www.samsungdocs.com

Samsung MBS(LTE) Alarm Manual for SLR 3.1 v2.0 iii Samsung Proprietary and Confidential

Contents

Preface viii

Relevance ....................................................................................................................................... viii Conventions in this Document ....................................................................................................... viii New and Changed Information ....................................................................................................... ix Revision History ............................................................................................................................... ix Organization of This Document ....................................................................................................... x Related Documentation .................................................................................................................. xi

Chapter 1 Introducing Alarms 1 Overview .......................................................................................................................................... 1 Alarm Codes ..................................................................................................................................... 2 Unit Types ........................................................................................................................................ 3 Alarm Categories .............................................................................................................................. 3 Alarm Severities ............................................................................................................................... 3 Auto Alarm Suppression ................................................................................................................... 4 Inhibiting Alarms .............................................................................................................................. 4 Monitoring Alarms ........................................................................................................................... 5 Dealing with an Alarm ...................................................................................................................... 5

Chapter 2 CDU Alarm Reference 6 CDU Alarms at a Glance ................................................................................................................... 6 A2100102R UMP PROCESS DOWN ................................................................................................... 9 A2100217R UMP CPU TEMPERATURE HIGH .................................................................................. 10 A2100300R UMP DISK FULL ........................................................................................................... 12 A2100301R UMP MEMORY FULL ................................................................................................... 13 A2100302R UMP OVERLOAD ......................................................................................................... 14 A2100351R UMP CLOCK FAIL ......................................................................................................... 15 A2100370R UMP MEMORY FAIL .................................................................................................... 17 A2100380R UMP PORT DOWN ...................................................................................................... 19 A2103100R IMP DSP RESTART ....................................................................................................... 22 A2103102R IMP PROCESS DOWN .................................................................................................. 23 A2103217R IMP CPU TEMPERATURE HIGH ................................................................................... 24 A2103300R IMP DISK FULL ............................................................................................................. 26 A2103301R IMP MEMORY FULL ..................................................................................................... 27 A2103302R IMP OVERLOAD ........................................................................................................... 28 A2103351R IMP CLOCK FAIL .......................................................................................................... 29 A2103370R IMP MEMORY FAIL ...................................................................................................... 31 A2103372R IMP DSP FAIL ............................................................................................................... 33 A2103376R IMP CPRI FAIL .............................................................................................................. 34 A2103378R IMP OPTIC TRANSCEIVER RX LOS ................................................................................ 36 A2103379R IMP OPTIC TRANSCEIVER TX FAULT ............................................................................ 38 A2103380R IMP PORT DOWN ........................................................................................................ 40 A2103607R IMP SFN FAIL ............................................................................................................... 42 A2103627R IMP SOC FAIL .............................................................................................................. 44 A2103628R IMP SOC RESTART ....................................................................................................... 45 A2116100R ECP DSP RESTART ........................................................................................................ 46 A2116102R ECP PROCESS DOWN .................................................................................................. 47

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Samsung MBS(LTE) Alarm Manual for SLR 3.1 v2.0 iv Samsung Proprietary and Confidential

A2116300R ECP DISK FULL ............................................................................................................. 48 A2116301R ECP MEMORY FULL ..................................................................................................... 49 A2116302R ECP OVERLOAD ........................................................................................................... 51 A2116351R ECP CLOCK FAIL ........................................................................................................... 52 A2116366R ECP BOARD DELETION ................................................................................................ 55 A2116367R ECP POWER FAIL ......................................................................................................... 57 A2116368R ECP FUNCTION FAIL .................................................................................................... 59 A2116372R ECP DSP FAIL ............................................................................................................... 61 A2116376R ECP CPRI FAIL .............................................................................................................. 62 A2116378R ECP OPTIC TRANSCEIVER RX LOS ................................................................................ 64 A2116379R ECP OPTIC TRANSCEIVER TX FAULT ............................................................................ 66 A2116381R ECP COMMUNICATION FAIL ....................................................................................... 68 A2116607R ECP SFN FAIL ............................................................................................................... 69 A2149210R RRH FAN ALARM ......................................................................................................... 71 A2149216R RRH TEMPERATURE HIGH ........................................................................................... 73 A2149351R RRH CLOCK FAIL .......................................................................................................... 75 A2149368R RRH FUNCTION FAIL.................................................................................................... 77 A2149381R RRH COMMUNICATION FAIL....................................................................................... 79 A2149384R RRH DC INPUT FAIL ..................................................................................................... 80 A2149385R RRH DISABLED ............................................................................................................. 82 A2149388R RRH LNA FAIL .............................................................................................................. 84 A2149389R RRH LOW GAIN ........................................................................................................... 86 A2149391R RRH OVER POWER ...................................................................................................... 88 A2149392R RRH VSWR FAIL ........................................................................................................... 90 A2149395R RRH DIGITAL INPUT HIGH ........................................................................................... 92 A2149408R RRH DIGITAL INPUT LOW ............................................................................................ 94 A2149609R RRH RSSI HIGH ............................................................................................................ 96 A2149610R RRH RSSI LOW ............................................................................................................. 98 A2149649R RRH HW TYPE MISMATCH ........................................................................................ 100 A2180001R UCR TOD_MSG_MISSED ........................................................................................... 102 A2180350R UCR ANTENNA FAIL................................................................................................... 103 A2180361R UCR NO GPS SIGNAL ................................................................................................. 105 A2180368R UCR FUNCTION FAIL ................................................................................................. 106 A2180424R UCR FREQUENCY HOLDOVER EXCEED ...................................................................... 107 A2184001R PTPM TOD MSG MISSED ........................................................................................... 108 A2184003R PTPM NO CURRENT PTP MASTER ............................................................................. 110 A2184320R PTPM NO PTP SIGNAL ............................................................................................... 112 A2184321R PTPM CLOCK DEV NOT INIT ...................................................................................... 114 A2184424R PTPM FREQUENCY HOLDOVER EXCEED .................................................................... 116 A2184430R PTPM STARTUP LOCKING FAIL .................................................................................. 118 A2192025R SYNCE NO CURRENT MASTER ................................................................................... 120 A2192321R SYNCE CLOCK DEV NOT INIT ..................................................................................... 122 A2192423R SYNCE NO CLOCK REF SIGNAL................................................................................... 124 A2192424R SYNCE FREQUENCY HOLDOVER EXCEED ................................................................... 126 A2192428R SYNCE CLOCK DEV FAIL ............................................................................................. 128 A2192430R SYNCE STARTUP_LOCKING_FAIL ............................................................................... 130 A2199202R SYS UDA .................................................................................................................... 132 A2199209R SYS FAN FAIL ............................................................................................................. 134 A2199365R SYS NTP UPDATE ERROR ........................................................................................... 135 A2199460R SYS SERVICE OFF ....................................................................................................... 136 A2199600R SYS MME COMMUNICATION FAIL ............................................................................ 137

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Samsung MBS(LTE) Alarm Manual for SLR 3.1 v2.0 v Samsung Proprietary and Confidential

A2199602R SYS SLEEPING CELL DETECTION ................................................................................ 138 A2199605R SYS IND MME COMMUNICATION FAIL ..................................................................... 140

Chapter 3 SDU Alarm Reference 141 SDU Alarms at a Glance ................................................................................................................ 141 A2100102R UMP PROCESS DOWN ............................................................................................... 144 A2100217R UMP CPU TEMPERATURE HIGH ................................................................................ 145 A2100300R UMP DISK FULL ......................................................................................................... 147 A2100301R UMP MEMORY FULL ................................................................................................. 148 A2100302R UMP OVERLOAD ....................................................................................................... 149 A2100351R UMP CLOCK FAIL ....................................................................................................... 150 A2100370R UMP MEMORY FAIL .................................................................................................. 152 A2100380R UMP PORT DOWN .................................................................................................... 154 A2103100R IMP DSP RESTART ..................................................................................................... 156 A2103102R IMP PROCESS DOWN ................................................................................................ 157 A2103217R IMP CPU TEMPERATURE HIGH ................................................................................. 158 A2103300R IMP DISK FULL ........................................................................................................... 160 A2103301R IMP MEMORY FULL ................................................................................................... 161 A2103302R IMP OVERLOAD ......................................................................................................... 162 A2103351R IMP CLOCK FAIL ........................................................................................................ 163 A2103370R IMP MEMORY FAIL .................................................................................................... 165 A2103372R IMP DSP FAIL ............................................................................................................. 167 A2103376R IMP CPRI FAIL ............................................................................................................ 168 A2103378R IMP OPTIC TRANSCEIVER RX LOS .............................................................................. 170 A2103379R IMP OPTIC TRANSCEIVER TX FAULT .......................................................................... 172 A2103380R IMP PORT DOWN ...................................................................................................... 174 A2103607R IMP SFN FAIL ............................................................................................................. 176 A2103627R IMP SOC FAIL ............................................................................................................ 178 A2103628R IMP SOC RESTART ..................................................................................................... 179 A2116100R ECP DSP RESTART ...................................................................................................... 180 A2116102R ECP PROCESS DOWN ................................................................................................ 181 A2116300R ECP DISK FULL ........................................................................................................... 182 A2116301R ECP MEMORY FULL ................................................................................................... 184 A2116302R ECP OVERLOAD ......................................................................................................... 186 A2116351R ECP CLOCK FAIL ......................................................................................................... 188 A2116367R ECP POWER FAIL ....................................................................................................... 190 A2116368R ECP FUNCTION FAIL .................................................................................................. 192 A2116372R ECP DSP FAIL ............................................................................................................. 194 A2116376R ECP CPRI FAIL ............................................................................................................ 195 A2116378R ECP OPTIC TRANSCEIVER RX LOS .............................................................................. 197 A2116379R ECP OPTIC TRANSCEIVER TX FAULT .......................................................................... 199 A2116381R ECP COMMUNICATION FAIL ..................................................................................... 201 A2116607R ECP SFN FAIL ............................................................................................................. 202 A2149210R RRH FAN ALARM ....................................................................................................... 204 A2149216R RRH TEMPERATURE HIGH ......................................................................................... 206 A2149351R RRH CLOCK FAIL ........................................................................................................ 208 A2149368R RRH FUNCTION FAIL.................................................................................................. 210 A2149381R RRH COMMUNICATION FAIL..................................................................................... 212 A2149384R RRH DC INPUT FAIL ................................................................................................... 214 A2149385R RRH DISABLED ........................................................................................................... 216 A2149388R RRH LNA FAIL ............................................................................................................ 218

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Samsung MBS(LTE) Alarm Manual for SLR 3.1 v2.0 vi Samsung Proprietary and Confidential

A2149389R RRH LOW GAIN ......................................................................................................... 220 A2149391R RRH OVER POWER .................................................................................................... 222 A2149392R RRH VSWR FAIL ......................................................................................................... 224 A2149395R RRH DIGITAL INPUT HIGH ......................................................................................... 226 A2149408R RRH DIGITAL INPUT LOW .......................................................................................... 228 A2149609R RRH RSSI HIGH .......................................................................................................... 230 A2149610R RRH RSSI LOW ........................................................................................................... 232 A2149649R RRH HW TYPE MISMATCH ........................................................................................ 234 A2180001R UCR TOD_MSG_MISSED ........................................................................................... 236 A2180350R UCR ANTENNA FAIL................................................................................................... 237 A2180361R UCR NO GPS SIGNAL ................................................................................................. 239 A2180368R UCR FUNCTION FAIL ................................................................................................. 241 A2180424R UCR FREQUENCY HOLDOVER EXCEED ...................................................................... 242 A2184001R PTPM TOD MSG MISSED ........................................................................................... 244 A2184003R PTPM NO CURRENT PTP MASTER ............................................................................. 246 A2184320R PTPM NO PTP SIGNAL ............................................................................................... 248 A2184321R PTPM CLOCK DEV NOT INIT ...................................................................................... 250 A2184424R PTPM FREQUENCY HOLDOVER EXCEED .................................................................... 251 A2184430R PTPM STARTUP LOCKING FAIL .................................................................................. 253 A2192025R SYNCE NO CURRENT MASTER ................................................................................... 255 A2192321R SYNCE CLOCK DEV NOT INIT ..................................................................................... 257 A2192423R SYNCE NO CLOCK REF SIGNAL................................................................................... 259 A2192424R SYNCE FREQUENCY HOLDOVER EXCEED ................................................................... 261 A2192428R SYNCE CLOCK DEV FAIL ............................................................................................. 263 A2192430R SYNCE STARTUP_LOCKING_FAIL ............................................................................... 265 A2199202R SYS UDA .................................................................................................................... 267 A2199209R SYS FAN FAIL ............................................................................................................. 269 A2199216R SYS TEMPERATURE HIGH .......................................................................................... 270 A2199365R SYS NTP UPDATE ERROR ........................................................................................... 272 A2199460R SYS SERVICE OFF ....................................................................................................... 273 A2199600R SYS MME COMMUNICATION FAIL ............................................................................ 274 A2199602R SYS SLEEPING CELL DETECTION ................................................................................ 275 A2199605R SYS IND MME COMMUNICATION FAIL ..................................................................... 277

Samsung MBS(LTE) Alarm Manual for SLR 3.1 v2.0 vii Samsung Proprietary and Confidential

List of Tables

Table 1. Unit Types ........................................................................................................................................ 3 Table 2. Alarm Categories .............................................................................................................................. 3 Table 3. Alarm Severities ............................................................................................................................... 4

Samsung MBS(LTE) Alarm Manual for SLR 3.1 v2.0 viii Samsung Proprietary and Confidential

Preface

This manual is a detailed reference and resolution guide for all alarms that can be

raised by the Samsung MBS(LTE). It covers alarms raised by the Samsung SDU10,

CD10, and by the radio units.

Each alarm is identified by a unique alarm code that starts with the letter A and is

followed by a seven-digit number and ends with the letter R, as seen in the LTE

System Manager (LSM) view window. To resolve a particular alarm, look it up in

this manual and follow the recommended resolution procedure.

Relevance

This manual applies to the following products/software.

Name Type

SLR 3.1 Software

LSM 3.1 Software

Conventions in this Document

Samsung Networks product documentation uses the following conventions.

Symbols

Symbol Description

Indicates a task.

Indicates a shortcut or an alternative method.

Provides additional information.

Provides information or instructions that you should follow to avoid service failure or damage to equipment.

Provides information or instructions that you should follow to avoid personal injury or fatality.

Provides antistatic precautions that you should observe.

Menu Commands

menu | command

This indicates that you must select a command on a menu, where menu is the

name of the menu, and command is the name of the command on that menu.

Preface

Samsung MBS(LTE) Alarm Manual for SLR 3.1 v2.0 ix Samsung Proprietary and Confidential

File Names and Paths

These are indicated by a bold typeface. For example:

Copy filename.ext into the /home/folder1/folder2/bin/ folder.

User Input and Console Screen Output Text

Input and output text is presented in the Courier font. For example,

context < designated epc-context-name>

CLI commands are presented in bold small caps. For example,

Type the RTRV-NE-STS command in the input field.

New and Changed Information

This section describes information that has been added/changed since the previous

publication of this manual.

SYS TEMPERATURE HIGH Alarm is added to the SDU alarm List.

Unit type name changed : GPSR UCR

Added On-site action for SDU11 to several SDU Alarm's remedies.

Revision History

The following table lists all versions of this document.

Document Number Product/Software

Version

Document Version Publication Date

2600-00G1LYGAB SLR 2.4 1.0 31 Oct 2014

2600-00GAEAGAB SLR 3.1 1.0 14 Feb 2014

2600-00GAEAGAB SLR 3.1 2.0 29 Oct 2014

Preface

Samsung MBS(LTE) Alarm Manual for SLR 3.1 v2.0 x Samsung Proprietary and Confidential

Organization of This Document

Section Title Description

Chapter 1 Introducing Alarms A general introduction to alarms on the MBS(eNB) including categories, severities and how to deal with them.

Chapter 2 CDU Alarm Reference A reference to alarms that can be raised on components of the CDU digital unit and also radio units. Alarms are listed in numerical order.

Chapter 3 SDU Alarm Reference A reference to alarms that can be raised on components of the SDU digital unit and also radio units. Alarms are listed in numerical order.

Appendix Acronyms Spells out the acronyms used in the manual.

Preface

Samsung MBS(LTE) Alarm Manual for SLR 3.1 v2.0 xi Samsung Proprietary and Confidential

Related Documentation

Samsung CDU10 Installation Manual for LTE Overlay

Samsung SDU10 Installation Manual for LTE Overlay

Samsung MBS(LTE) Operation Manual for SLR 3.1

Samsung MBS(LTE) Maintenance Manual for SLR 3.1

Samsung MBS(LTE) Troubleshooting Manual for SLR 3.1

Samsung MBS(LTE) Hardware Addition and Replacement Manual for SLR 3.1

Samsung MBS(LTE) Counter Description for SLR 3.1

Samsung LSM 3.1 Administrator's Manual

Samsung MBS(LTE) Air Parameters for SLR 3.1

Samsung MBS(LTE) Call Parameters for SLR 3.1

Samsung MBS(LTE) Command Reference for SLR 3.1

Samsung MBS(LTE) Dimensioning and Configuration Manual for SLR 3.1

Samsung MBS(LTE) Event Message Reference for SLR 3.1

Samsung MBS(LTE) Commissioning and Integration Manual for SLR 3.1

Samsung LSM 3.1 Troubleshooting Manual

Samsung CDU10 Product Specification

Samsung RF1 Series Product Specification

Samsung SF1 Series Product Specification

Samsung SDU10 Installation Manual

Samsung SDU11 Installation Manual

Samsung RF1 Series Installation Manual

Samsung SF1 Series Installation Manual

Samsung MBS(LTE) Alarm Manual for SLR 3.1 v2.0 1 Samsung Proprietary and Confidential

Chapter 1 Introducing Alarms

Overview

Alarms are events indicating problems or conditions that are worth highlighting.

An alarm can be raised by hardware or by software processes.

Hardware alarms are environmental alarms or alarms that are generated in a board.

These alarms are collected by all the sub-boards and are reported to the main board.

Software alarms are detected by other software blocks in each board and reported

to the fault management module running in the master board.

Alarms are graded into severities and require operator intervention. An alarm is

raised if, for example, a process in the equipment has failed or if the temperature

level around a hardware component has reached a defined threshold level.

Alarms are vital to the troubleshooting and diagnosis of hardware and software

problems.

All Alarms are reported in the LSM graphical user interface and are retained in an

alarm/fault history location for the following rolling periods:

Type of Alarm/Fault Retention Period

Raw data 7 days

Hourly 60 days

Daily 60 days

Monthly 6 months

There are two types of output message:

Alarm occurred

Alarm cleared

In the LSM event viewer, the following colors are used to indicate the alarms and

their severity.

Critical: Red

Major: Orange

Minor: Yellow

Warning: Sky Blue

Alarm Cleared: Green



Every alarm is uniquely identified by an alarm code and falls into a particular

category with an assigned severity.

Alarms are events indicating problems or conditions that are worth highlighting.

An alarm can be raised by hardware or by software processes. An alarm is raised if,

for example, a process in the equipment has failed. Another alarm might be raised

if the temperature level around a hardware component has reached a defined

threshold level.

Alarm Codes

An alarm is uniquely identified by an alarm code. The alarm code is an alpha-

numeric string that starts with the letter A, contains a unique 7-digit number and

ends with the letter R. The letter A stands for Alarm, and the letter R identifies that

the alarm is for the RAN (eNB).

A: Abbreviation of Alarm

xxyyzzz (7-digit number): Allocated to each alarm uniquely.

o xx: NE type. The NE type value for the Samsung MBS is 21.

o yy: Unit type. For unit type values, see Table 1.

o zzz: Alarm type. For alarm type values, see Table 2.

R: Abbreviation of RAN (eNB)

A xxyyzzz R

Abbreviation of Alarm

Abbreviation of RAN (eNB)

Alarm number



Unit Types

The following table shows types of units that can raise alarms:

Table 1. Unit Types

Code Unit Type Description

00 UMP (Universal Main Processor) DU: UAMA (Universal platform type A Management board Assembly)

SDU: UBMA (Universal platform type B Management board Assembly)

03 IMP (Integrated Main Processor) LUA (LTE United type A)

16 ECP (ENB Channel Processor) L9CA (LTE eNB Channel card board Assembly)

49 RRH (Remote Radio Head) L8HU (LTE eNB remote radio Head Unit)

84 PTPM IEEE1588 Clock Device

92 SYNCE SyncE Clock Device

99 SYS eNB

Alarm Categories

The category of the alarm denotes the component type that raised the alarm or the

type of service affected by the alarm. Every alarm falls into one of the following

categories and this is clearly stated under each alarm description in this manual.

Table 2. Alarm Categories

Category Meaning

COMMUNICATIONS (COM) A communication failure between equipment

QOS An adverse effect on device performance or quality of service

PROCESSING (PROC) A software or processing failure

EQUIPMENT (EQUIP) A device or equipment failure

ENVIRONMENT (ENV) An environmental condition (such as excessive temperature or humidity) causing an adverse effect on equipment

Alarm Severities

The severity indicates the impact on the system and gives you an idea of how

quickly the alarm should be dealt with. Every alarm that can be raised is assigned

one of the following severities (from lowest to highest) and this is clearly stated

under each alarm description in this manual.



Table 3. Alarm Severities

Severity Meaning

MINOR Indicates errors that do not have an immediate impact on the system but may do so if left unresolved.

MAJOR Indicates errors pertaining to abnormalities in hardware or software operation such as circuit or subscriber service errors, immediate action is required although system operation is not seriously hindered.

CRITICAL Indicates errors that seriously hinder normal system operation or greatly affect the system services. Immediate action is required.

Some alarms can take on different severity levels over a period of time. The

occurrence of such an alarm clears any previously raised lower-severity

occurrences of the alarm. To illustrate this, consider the alarm that is raised when

disk usage reaches predefined thresholds defined by the operator such as Minor

when 85% full, Major when 90% full, and Critical when 95% full. A minor alarm

will be raised when the disk is 85% full. At 90%, the severity will change to major

and, at 95%, it will change to critical.

Auto Alarm Suppression

Some failures may raise several related alarms of different severities. A high

severity alarm demanding immediate attention will automatically cause related

lower severity alarms from being reported until it is cleared. This allows you to

focus your troubleshooting efforts on more immediate issues before being told

about the less important ones.

For example, when a Communication Fail alarm is generated on a channel card or

radio unit (RRH), other alarms that occur on these boards will not be reported.

This is because the Communication Fail alarm is a higher severity alarm. The

collection of the suppressed lower-severity alarms resumes after the

Communication Fail alarm is cleared.

Inhibiting Alarms

If, for any reason, you are not interested in being notified about particular alarms,

you can inhibit them so that they are not displayed in LSM. Inhibited alarms are

not saved to the alarm history location.



Monitoring Alarms

You can monitor the alarm by the following methods:

Alarm monitoring using the LSM Event Viewer.

Alarm monitoring by executing commands on the CLI window of the LSM.

Alarm Monitoring by LED.

Dealing with an Alarm

To ensure that your network is running properly at all times, you must deal with

alarms promptly.

To deal with an alarm:

1 Read the alarm information in the LSM and/or look up the alarm in this manual to identify its cause and remedy. If the alarm is related to another

alarm of higher severity, then identify the cause of this higher severity alarm.

2 Use the information to try to resolve the underlying problem and thus clear the alarm.

If you are still unable to clear an alarm, report the problem to your local Samsung

Electronics support desk (hereafter referred to as Samsung).


Chapter 2 CDU Alarm Reference

CDU Alarms at a Glance

Code Name Severity Relates to Category

A2100102R UMP PROCESS DOWN Major Software PROC

A2100217R UMP CPU TEMPERATURE HIGH Major Hardware ENV

A2100300R UMP DISK FULL All Software QOS

A2100301R UMP MEMORY FULL All Software QOS

A2100302R UMP OVERLOAD All Software QOS

A2100351R UMP CLOCK FAIL Major Hardware EQUIP

A2100370R UMP MEMORY FAIL Major Hardware EQUIP

A2100380R UMP PORT DOWN Major Hardware EQUIP

A2103100R IMP DSP RESTART Critical Software PROC

A2103102R IMP PROCESS DOWN Major Software PROC

A2103217R IMP CPU TEMPERATURE HIGH Major Hardware ENV

A2103300R IMP DISK FULL All Software QOS

A2103301R IMP MEMORY FULL All Software QOS

A2103302R IMP OVERLOAD All Software QOS

A2103351R IMP CLOCK FAIL Major Hardware EQUIP

A2103370R IMP MEMORY FAIL Major Hardware EQUIP

A2103372R IMP DSP FAIL Critical Software EQUIP

A2103376R IMP CPRI FAIL Major Hardware EQUIP

A2103378R IMP OPTIC TRANSCEIVER RX LOS Major Hardware EQUIP

A2103379R IMP OPTIC TRANSCEIVER TX FAULT Major Hardware EQUIP

A2103380R IMP PORT DOWN Major Hardware EQUIP

A2103607R IMP SFN FAIL Critical Hardware EQUIP

A2103627R IMP SOCFAIL Critical Software EQUIP

A2103628R IMP SOC RESTART Critical Software PROC

A2116100R ECP DSP RESTART Critical Software PROC

A2116102R ECP PROCESS DOWN Major Software PROC

A2116300R ECP DISK FULL All Software QOS

A2116301R ECP MEMORY FULL All Software QOS

A2116302R ECP OVERLOAD All Software QOS

A2116351R ECP CLOCK FAIL Major Hardware EQUIP

A2116366R ECP BOARD_DELETION Critical Hardware EQUIP

A2116367R ECP POWER FAIL Major Hardware EQUIP

A2116368R ECP FUNCTION FAIL Major Hardware EQUIP

A2116372R ECP DSP FAIL Critical Software EQUIP




A2116376R ECP CPRI FAIL Major Hardware EQUIP

A2116378R ECP OPTIC TRANSCEIVER RX LOS Major Hardware EQUIP

A2116379R ECP OPTIC TRANSCEIVER TX FAULT Major Hardware EQUIP

A2116381R ECP COMMUNICATION FAIL Major Software EQUIP

A2116607R ECP SFN FAIL Major Hardware EQUIP

A2149210R RRH FAN ALARM Minor Hardware ENV

A2149216R RRH TEMPERATURE HIGH Major Hardware ENV

A2149351R RRH CLOCK FAIL Major Hardware EQUIP

A2149368R RRH FUNCTION FAIL Major Hardware EQUIP

A2149381R RRH COMMUNICATION FAIL Critical Software EQUIP

A2149384R RRH DC INPUT FAIL Major Hardware EQUIP

A2149385R RRH DISABLED Major Hardware EQUIP

A2149388R RRH LNA FAIL Minor Hardware EQUIP

A2149389R RRH LOW GAIN Major Hardware EQUIP

A2149391R RRH OVER POWER Major Hardware EQUIP

A2149392R RRH VSWR FAIL Major Hardware EQUIP

A2149395R RRH DIGITAL INPUT HIGH Minor Hardware EQUIP

A2149408R RRH DIGITAL INPUT LOW Minor Hardware EQUIP

A2149609R RRH RSSI HIGH Minor Hardware EQUIP

A2149610R RRH RSSI LOW Minor Hardware EQUIP

A2149649R RRH HW TYPE MISMATCH Major Hardware EQUIP

A2180001R UCR TOD_MSG_MISSED Major Software COM

A2180350R UCR ANTENNA_FAIL Major Hardware EQUIP

A2180361R UCR NO GPS SIGNAL Major Hardware EQUIP

A2180368R UCR FUNCTION_FAIL Critical Hardware EQUIP

A2180424R UCR FREQUENCY HOLDOVER EXCEED Major Hardware EQUIP

A2184001R PTPM TOD MSG MISSED Major Software COM

A2184003R PTPM NO CURRENT PTP MASTER Major Hardware COM

A2184320R PTPM NO PTP SIGNAL Minor Hardware EQUIP

A2184321R PTPM CLOCK DEV NOT INIT Critical Hardware EQUIP

A2184424R PTPM FREQUENCY HOLDOVER EXCEED Critical Hardware EQUIP

A2184430R PTPM STARTUP LOCKING FAIL Critical Hardware EQUIP

A2192025R SYNCE NO CURRENT MASTER Major Hardware COM

A2192321R SYNCE CLOCK DEV NOT INIT Critical Hardware EQUIP

A2192423R SYNCE NO CLOCK REF SIGNAL Major Hardware EQUIP

A2192424R SYNCE FREQUENCY HOLDOVER EXCEED Critical Hardware EQUIP

A2192428R SYNCE CLOCK DEV FAIL Critical Hardware EQUIP

A2192430R SYNCE STARTUP LOCKING FAIL Critical Hardware EQUIP

A2199202R SYS UDA All Hardware EQUIP

A2199209R SYS FAN FAIL Major Hardware ENV

A2199365R SYS NTP UPDATE ERROR Major Software EQUIP

A2199460R SYS SERVICE OFF Critical Software EQUIP




A2199600R SYS MME COMMUNICATION FAIL Critical Software EQUIP

A2199602R SYS SLEEPING CELL DETECTION Major Software PROC

A2199605R SYS IND MME COMMUNICATION FAIL Major Software EQUIP



A2100102R UMP PROCESS DOWN

This alarm occurs when a process is deactivated.

Basic Information

Severity MAJOR

Relates to Software

Category PROCESSING

Possible Cause(s)

This happens when a process is deactivated. You can find the cause by analyzing

the core file and log file uploaded to the LSM.

Impact

If an alarm is generated continuously in a specific software block, service may not

be available.

Remedy

Whenever a process becomes deactivated, the process will be restarted

automatically within 3 seconds.

To identify whether you need to take action and to correct the problem:

1 Monitor the alarm status to see if the process restarts 10 times within 3 minutes.

2 If the process restarts more than 10 times during 3 minutes, run the INIT-SW command to manually initiate the process restart.

If the alarm occurs repeatedly after taking the described actions, please notify Samsung.



A2100217R UMP CPU TEMPERATURE HIGH

This alarm occurs when the CPU temperature exceeds the threshold.

Basic Information

Severity MAJOR

Relates to Hardware

Category ENVIRONMENT

Possible Cause(s)

The CPU temperature exceeds the threshold.

Impact

There may be damage to the board.

Remedy

Off-site Actions via LSM Before Site Visit

To collect the LSM log and current status information:

1 Run the RTRV-PRC-FW:UMP command to check the firmware information.

2 Run the RTRV-ALM-LIST command to check if a fan alarm is generated.

3 Run the RTRV-PRC-STS:UMP command to check the value of the TEMPERATURE parameter.

Provide the log files to Samsung for further analysis.

To correct the problem:

1 Run the INIT-PRC:UMP command to reset the UMP.

2 Check if the alarm is cleared. If the alarm is cleared, record the current status and observe any reoccurrence.

3 If the alarm is not cleared, inspect the UMP at the installation site, and perform on-site actions.



On-site Actions

To identify and correct the problem:

1 Check the status of the PWR/ALM LED on the fan module at the front of the DU. Green indicates Normal and Red indicate fan failure.

2 If the PWR/ALM LED is green, check that the fan is rotating normally.

3 Unmount the board for which an alarm is generated and check the inside of the DU shelf to find any element or foreign material that may have blocked the air

flow. If an air filter is mounted on the DU shelf, check that the air filter is in

proper working condition.

4 Unmount the CPU heat sink of the UMP. Check that the thermal pad size is sufficient and that the contact between the CPU and heat sink is good. The

CPU location is shown in the following figure.

5 Mount the UMP and check if an alarm is generated after loading completes.

6 If the alarm is cleared, record the current status and observe any reoccurrence.

7 If the alarm is not cleared, replace the UMP.

For information about UMP replacement, see the Samsung MBS(LTE) Hardware Addition and Replacement Manual for SLR 3.1.

CPU (U40)



A2100300R UMP DISK FULL

This alarm occurs when the disk usage exceeds the threshold.

Basic Information

Severity CRITICAL/MAJOR/MINOR

Relates to Software

Category QOS

Possible Cause(s)

The disk usage exceeds the threshold.

The threshold value can be retrieved using the RTRV-ALM-THR COMMAND.

Impact

Some software blocks may operate abnormally.

Defaults

Minor: 85 %, Major: 90 %, Critical: 95 %

Remedy


1 Run the RTRV-ALM-THR command to check the threshold value.

2 If the threshold value is too small, run the CHG-ALM-THR command to change it to an appropriate value. If the threshold value is normal, run the

RTRV-DISK-UTIL command to check the disk area whose usage is higher

than the threshold value.

3 Reset the UMP.

4 If the alarm is not cleared even after UMP is reset, replace the UMP.




A2100301R UMP MEMORY FULL

This alarm occurs when the memory usage exceeds the threshold.

Basic Information


Relates to Software

Category QOS

Possible Cause(s)

The memory usage exceeds the threshold.


Impact


Defaults


Remedy




RTRV-MEM-UTIL command to check if actual memory usage is higher than

the threshold value.

3 If there is no software application with a high memory usage, reset the UMP.

4 If the alarm is not cleared even after the UMP is reset, replace the UMP.

For information about board replacement, see the Samsung MBS(LTE) Hardware Addition and Replacement Manual for SLR 3.1.



A2100302R UMP OVERLOAD

This alarm occurs when the CPU usage exceeds the threshold.

Basic Information


Relates to Software

Category QOS

Possible Cause(s)

The CPU usage exceeds the threshold.

The threshold value can be retrieved using RTRV-ALM-THR COMMAND.

Impact

Some software blocks to operate abnormally. If an alarm is generated continuously,

the UMP board may reset.

Defaults


Remedy




RTRV-CPU-UTIL command to check if actual memory usage is higher than


3 If there is no software application with a high CPU usage, reset the UMP.

4 If the alarm is not cleared even after the UMP is reset, replace the UMP.




A2100351R UMP CLOCK FAIL

This alarm occurs when the clock frequency deviation exceeds normal parameters.

Basic Information

Severity MAJOR

Relates to Hardware

Category EQUIPMENT

Possible Cause(s)

The clock frequency (10 MHz, Even) of the clock module has a deviation beyond

normal parameters or there is no clock.

Impact

Service may not be available.

Remedy




2 Run the RTRV-ALM-LIST command to check if Clock Device alarms are generated.

3 Run the RTRV-PTPM-INVT or RTRV-SYNCE-STS command to check the firmware information of the clock module.

Provide log files to Samsung for further analysis.


1 In the CLI window, run the INIT-PRC:UMP command to reset the UMP. Check if an alarm is generated.


3 If the alarm is not cleared, inspect the UMP at the installation site and perform on-site actions.



On-site Actions

To identify and correct the problem:33

1 Check the LED status at the front of the UMP.

a Green Blinking: Normal

b Red: Alarms CLOCK_DEV_NOT_INIT, STARTUP LOCKING FAIL

FREQUENCE_HOLDOVER_EXCEED,

TOD_MSG_MISSED(IEEE1588 only), CLOCK_DEV_FAIL(SYNCE

only)

c Orange: Frequency holdover start status.

2 Check if the external link cable that is used to provide the clock and that is mounted on the UMP front side is correctly connected. If the cable is not

properly connected or there is a problem with the connector, disconnect and

reconnect the cable, or replace the cable.

3 If the clock device is IEEE1588, check the setting and communication status of the UMP and IEEE1588 master. If the clock device is Sync-E, check the

setting and communication status of the UMP and Sync-E master.

4 Unmount and remount the UMP and check if an alarm is generated after loading completes.



For the information about UMP replacement, see the Samsung MBS(LTE) Hardware Addition and Replacement Manual for SLR 3.1.



A2100370R UMP MEMORY FAIL

This alarm occurs when Operation errors (data read/write errors) of the memory

device occur.

Basic Information

Severity MAJOR

Relates to Hardware

Category EQUIPMENT

Possible Cause(s)

Operation errors (data read/write) of the memory device occur.

Impact


Remedy







1 In the CLI window, run the INIT-PRC:UMP command to reset the UMP and then check if an alarm is generated.





On-site Actions


1 Unmount the UMP. Disassemble and reassemble the DDR memory module. Check if there is any foreign material in the memory connector (socket). The

DDR location is shown below





DD

R

(SO

C2)

DD

R

(SO

C1)



A2100380R UMP PORT DOWN

This alarm occurs when the backhaul port is down.

Basic Information

Severity MAJOR

Relates to Hardware

Category EQUIPMENT

Possible Cause(s)

A link down failure (for example, due to a bad port connection) of the backhaul

port occurs.

Impact

The board cannot communicate with the LSM or external devices.

Remedy







1 In the CLI window, run the INIT-PRC:UMP command to reset the UMP and then check if an alarm is generated.





On-site Actions


1 Check the LED status of the port.

Status Description Copper Port

Orange blinking (Left) Ethernet Packet Tx Activity

Green on (Right) Link Up Status (Rx Activity)

Off Cable Open

Status Description Optical Port

Green On (Left) Link Up (physical link ready)

Off Power off, link off, or critical fault

(Right LED is always off.)

2 Check that the Ethernet cable is correctly connected and that there is no

external damage.

3 Check that the optical cable is correctly connected and that there is no external damage or bending.

4 Check that the connected optical cables (Single or Multi-Mode) are suitable for the installed optical module type (Single or Multi-Mode).

5 Check that the optical module is supported by the system.

6 Clean the optical module and measure its optical power. Check the measured optical power against the product specifications in the installation manual.

Replace the optical module if necessary.

7 Check the status of the equipment connected to the backhaul port (for example, router, switch).

8 If the equipment connected to the backhaul port is not working properly, reset or replace the equipment.

9 Unmount the UMP. Disassemble and reassemble the DDR memory module. Check if there is any foreign material in the memory connector (socket). The

DDR location is shown in the following figure.

Green LED

Orange

LED





12 If the alarm is not cleared, record the failure details to the RMA TAG and replace the UMP. Record the details including port connection configuration

status, the part number of mounted optical module, the optical cable type, etc.


DD

R

(SO

C2)

DD

R

(SO

C1)



A2103100R IMP DSP RESTART

This alarm occurs when the DSP resets and restarts.

Basic Information

Severity CRITICAL

Relates to Software

Category PROCESSING

Possible Cause(s)

The DSP resets and restarts (by using the DSP Reset command or replacing the

DSP image).

Impact

Cell services related to the IMP are not available during restart.

Remedy


1 Run the INIT-DSP command to reset the DSP.

2 If the alarm is not cleared after taking the described actions, or if the alarm occurs repeatedly, contact Samsung.



A2103102R IMP PROCESS DOWN

This alarm occurs when an IMP process is deactivated.

Basic Information

Severity MAJOR

Relates to Software

Category PROCESSING

Possible Cause(s)

This happens when a process is deactivated. You can find the cause by analyzing

the core file and log file uploaded to the LSM.

Impact

If an alarm generates continuously in a specific software block, service may be not

available.

Remedy

Whenever a process becomes deactivated, the process will be restarted

automatically within 3 seconds.


1 Monitor the alarm status until the process restart occurs 10 times within 3 minutes.

2 If the process restart occurs more than 10 times during 3 minutes, run the INIT-SW command to restart the process.




A2103217R IMP CPU TEMPERATURE HIGH

This alarm occurs when the CPU temperature exceeds the threshold.

Basic Information

Severity MAJOR

Relates to Hardware

Category ENVIRONMENT

Possible Cause(s)

The CPU temperature exceeds the threshold.

Impact

There may be damage to the board.

Remedy



1 Run the RTRV-PRC-FW:IMP command to check the firmware information.

2 Run the RTRV-ALM-LIST command to check if a fan alarm is generated.

3 Run the RTRV-PRC-STS:IMP command to check the value of the TEMPERATURE parameter.

Provide the log files to Samsung for further analysis.


1 Run the INIT-PRC:IMP command to reset the IMP.

2 Check if the alarm is cleared. If the alarm is cleared, record the current status and observe any reoccurrence.

3 If the alarm is not cleared, inspect the IMP at the installation site, and perform on-site actions.



On-site Actions


1 Check the status of the PWR/ALM LED on the fan module at the front of the DU.

a Green: Normal

b Red: Fan failure

2 If an air filter is mounted on the DU shelf, check that the air filter is in proper working condition.

3 If air filter is not in proper working condition, replace the air filter.

4 If the fan module is not in proper working, replace the fan module.


6 If the alarm is not cleared, replace the IMP.

For information about IMP replacement, see the Samsung MBS(LTE) Hardware Addition and Replacement Manual for SLR 3.1.



A2103300R IMP DISK FULL

This alarm occurs when the disk usage exceeds the threshold.

Basic Information


Relates to Software

Category QOS

Possible Cause(s)

The disk usage exceeds the threshold.


Impact


Defaults


Remedy




RTRV-DISK-UTIL command to check the disk area whose usage is higher

than the threshold value.

3 Reset the IMP.

4 If the alarm is not cleared even after the IMP is reset, replace the IMP.




A2103301R IMP MEMORY FULL

This alarm occurs when the memory usage exceeds the threshold.

Basic Information


Relates to Software

Category QOS

Possible Cause(s)

The memory usage exceeds the threshold.


Impact


Defaults


Remedy




RTRV-MEM-UTIL command to check if actual memory usage is higher than


3 If there is no software application with a high memory usage, reset the IMP.

4 If the alarm is not cleared even after the IMP is reset, replace the IMP.

For information about board replacement, see the Samsung MBS(LTE) Hardware Addition and Replacement Manual for SLR 3.1.



A2103302R IMP OVERLOAD

This alarm occurs when the CPU usage exceeds the threshold.

Basic Information


Relates to Software

Category QOS

Possible Cause(s)

The CPU usage exceeds the threshold.

The threshold value can be retrieved using RTRV-ALM-THR COMMAND.

Impact

Some software blocks to operate abnormally. If an alarm is generated continuously,

the UMP board may reset.

Defaults

Minor: 85 %, Major: 90 %, Critical: 95 %.

Remedy




RTRV-CPU-UTIL command to check if actual memory usage is higher than


3 If there is no software application with a high CPU usage, reset the IMP.

4 If the alarm is not cleared even after the IMP is reset, replace the IMP




A2103351R IMP CLOCK FAIL

This alarm occurs when the clock frequency deviation exceeds normal parameters.

Basic Information

Severity MAJOR

Relates to Hardware

Category EQUIPMENT

Possible Cause(s)

The clock frequency (10 MHz, Even) of the clock module has a deviation beyond

normal parameters or there is no clock.

Impact

Service may not be available.

Remedy





3 Run the RTRV-PTPM-INVT or RTRV-SYNCE-STS command to check the firmware information of the clock module.



1 In the CLI window, run the INIT-PRC:IMP command to reset the IMP. Check if an alarm is generated.


3 If the alarm is not cleared, inspect the IMP at the installation site and perform on-site actions.



On-site Actions


1 Check the LED status at the front of the IMP.

a Green Blinking: Normal

b Red: Alarms CLOCK_DEV_NOT_INIT, STARTUP LOCKING FAIL

FREQUENCE_HOLDOVER_EXCEED, TOD_MSG_MISSED

(IEEE1588 only), CLOCK_DEV_FAIL (SYNCE only)

c Orange: Frequency holdover start status.

2 Check if the external link cable that is used to provide the clock and that is mounted on the IMP front side is correctly connected. If the cable is not

properly connected or there is a problem with the connector, disconnect and

reconnect the cable, or replace the cable.

3 If the clock device is IEEE1588, check the setting and communication status of the LUA and IEEE1588 master. If the clock device is Sync-E, check the

setting and communication status of the LUA and Sync-E master.

4 Unmount and remount the IMP and check if an alarm is generated after loading completes.



For the information about IMP replacement, see the Samsung MBS(LTE) Hardware Addition and Replacement Manual for SLR 3.1.



A2103370R IMP MEMORY FAIL

This alarm occurs when Operation errors (data read/write errors) of the memory

device occur.

Basic Information

Severity MAJOR

Relates to Hardware

Category EQUIPMENT

Possible Cause(s)

Operation errors (data read/write) of the memory device occur.

Impact


Remedy







1 In the CLI window, run the INIT-PRC:IMP command to reset the IMP and then check if an alarm is generated.


3 If the alarm is not cleared, inspect the IMP at the installation site and perform on-site actions.



On-site Actions


1 Unmount the IMP. Disassemble and reassemble the DDR memory module. Check if there is any foreign material in the memory connector (socket).

2 Mount the IMP and check if an alarm is generated after loading completes.






A2103372R IMP DSP FAIL

This alarm occurs when there is a communication problem between the IMP and

the DSP.

Basic Information

Severity CRITICAL

Relates to Software

Category EQUIPMENT

Possible Cause(s)

This alarm may occur when:

The DSP initialization is not completed,

The CPU cannot receive the Keep-Alive response from the DSP,

The Core, the Modem or the FPGA of the DSP is not operating normally.

Impact

Cell services related to the DSP are not available.

Remedy


1 After the onset of the alarm, monitor the system to see if the alarm clears. If the alarm is not cleared, go to step 2.

2 Run the INIT-DSP command to reset the DSP.

If the alarm is not cleared even after the DSP reset, contact Samsung.



A2103376R IMP CPRI FAIL

This alarm occurs when Loss of Signal (LOS) or Loss of Frame (LOF) occurs in

the Common Platform Radio Interface (CPRI) layer.

Basic Information

Severity MAJOR

Relates to Hardware

Category EQUIPMENT

Possible Cause(s)

Loss of Signal (LOS) or Loss of Frame (LOF) occurs in the Common Platform

Radio Interface (CPRI) layer.

LOS: An alarm is generated when more than 16 8B/10B violations are detected in the overall CPRI hyper frame.

LOF: An alarm is generated when the hyper frame alignment (BYTE=K28.5 & Y=W=X=0) is not achieved on the CPRI synchronization state.

Impact

Cell services related to the RRH that is connected to the relevant IMP port are not

available.

Remedy



1 Run the RTRV-PRC-FW:IMP command to check firmware information.

2 Run the RTRV-PRC-STS command to check IMP status.



1 Run the RTRV-ALM-LIST command to check if IMP OPTIC TRANSCEIVER RX LOS and IMP OPTIC TRANSCEIVER TX FAULT

alarms are generated.

2 Using LOS and LOF, you can check if the Rx path is normal. When an alarm is generated, run the RTRV-RRH-STS command to check if the RRH is

normal.



3 Run the INIT-RRH command to reset the RRH, and monitor if the alarm is cleared.

4 If the alarm is not cleared, run the INIT-PRC:IMP command to reset the RRH, and monitor if the alarm is cleared.

5 If the alarm is not cleared, visit the site to perform on-site actions.

On-site Actions


1 Check that the optical module is properly mounted.

2 If the optical module is not properly mounted, unmount and remount the optical module.

3 If the optical module of the IMP board and the RRH is properly mounted, check the optical cable connection between the IMP and the RRH.

4 If the optical cable is not properly connected, disconnect and reconnect the optical cable. Clean the optical cable connector if necessary.

5 If the optical cable is properly connected and the optical cable connector is clean, unmount and remount the IMP.


7 If the alarm is not cleared, replace the optical module.

8 If the alarm is not cleared even after replacing the optical module, replace the IMP.

For information about IMP (LUA) replacement, see the Samsung MBS Hardware Addition & Replacement Manual.

9 If the alarm is cleared, record the current status and observe any reoccurrence. Record the fault details and affix them to the faulty IMP.




A2103378R IMP OPTIC TRANSCEIVER RX LOS

This alarm occurs when the optical cable is disconnected or when the optical

signal level falls below the normal parameters.

Basic Information

Severity MAJOR

Relates to Hardware

Category EQUIPMENT

Possible Cause(s)

The optical cable is disconnected or the optical signal level is below the normal

parameters.

Impact

Service is disabled for the link.

Remedy




2 Run the RTRV-PRC-STS, RTRV-ALM-LIST command to check IMP status.



3 Run the INIT-PRC:IMP command to reset the IMP, and monitor if the alarm is cleared.

4 If the alarm is not cleared, visit the site and perform on-site actions.



On-site Actions




3 If the optical module is properly mounted, check the optical cable connection.











A2103379R IMP OPTIC TRANSCEIVER TX

FAULT

This alarm occurs when the monitored power level of the signal generated by the

laser diode in the optical module is abnormal.

Basic Information

Severity MAJOR

Relates to Hardware

Category EQUIPMENT

Possible Cause(s)

The monitored power level of the laser diode signal in the optical module

(Modulation Current, Bias Current) is abnormal.

Impact

Service is disabled for the link.

Remedy




2 Run the RTRV-PRC-STS, RTRV-ALM-LIST command to check IMP status.



1 Run the INIT-PRC:IMP command to reset the IMP, and monitor if the alarm is cleared.




On-site Actions




3 If the optical module is properly mounted, check the optical cable connection.











A2103380R IMP PORT DOWN

This alarm occurs when the backhaul port is down.

Basic Information

Severity MAJOR

Relates to Hardware

Category EQUIPMENT

Possible Cause(s)

A link down failure (for example,. due to a bad port connection) of the backhaul

port occurs.

Impact

The board cannot communicate with the LSM or external devices.

Remedy




2 Run the RTRV-ALM-LIST command to check the Clock Device alarms are generated.



3 In the CLI window, run the INIT-PRC:IMP command to reset the IMP and then check if an alarm is generated.


If the alarm is not cleared, inspect the IMP at the installation site and perform on-

site actions.



On-site Actions


1 Check the LED status of the port.

Status Description Copper Port

Orange blinking (Left) Ethernet Packet Tx Activity

Green on (Right) Link Up Status (Rx Activity)

Off Cable Open

Status Description Optical Port

Green On (Left) Link Up (physical link ready)

Off Power off, link off, or critical fault

(Right LED is always off.)

2 Check that the Ethernet cable is correctly connected and that there is no

external damage.

3 Check that the optical cable is correctly connected and that there is no external damage or bending.

4 Check that the connected optical cables (Single or Multi-Mode) are suitable for the installed optical module type (Single or Multi-Mode).

5 Check that the optical module is supported by the system.

6 Clean the optical module and measure its optical power. Check the measured optical power against the product specifications in the installation manual.

Replace the optical module if necessary.

7 Check the status of the equipment connected to the backhaul port (for example, router, switch).

8 If the equipment connected to the backhaul port is not working properly, reset or replace the equipment.

9 Unmount the IMP. Disassemble and reassemble the DDR memory module. Check if there is any foreign material in the memory connector (socket).

10 Mount the IMP and check if an alarm is generated after loading completes.


12 If the alarm is not cleared, record the failure details to the RMA TAG and replace the IMP. Record the details including port connection configuration

status, the part number of mounted optical module, the optical cable type, etc.


Green LED

Orange

LED



A2103607R IMP SFN FAIL

This alarm occurs when there is no increase or decrease in SFN for more than 10

consecutive measurements at 10ms intervals.

Basic Information

Severity CRITICAL

Relates to Hardware

Category EQUIPMENT

Possible Cause(s)

The SFN is measured every 10 ms. If there is no increase or decrease in SFN for

more than 10 consecutive measurements, an alarm is generated.

Impact

None.

Remedy




2 Run the RTRV-PTPM-STS, RTRV-SYNCE-STS, RTRV-ALM-LIST command to check the clock related status and alarm occurrence.





1 If the Clock Device (IEEE1588 or Sync-E) is normal, run the INIT-PRC:IMP command to reset the IMP, and monitor if the alarm is cleared.


On-site Actions


1 Remount the IMP, and monitor if the alarm is cleared.







A2103627R IMP SOC FAIL

This alarm occurs when there is a communication problem between the IMP and

the SOC.

Basic Information

Severity CRITICAL

Relates to Software

Category EQUIPMENT

Possible Cause(s)

This alarm may occur when:

The SOC initialization is not completed,

The CPU cannot receive the Keep-Alive response from the SOC,

The Core, the Modem or the FPGA of the SOC is not operating normally.

Impact

Cell services related to the SOC are not available.

Remedy


1 After the onset of the alarm, monitor the system to see if the alarm clears. If the alarm is not cleared, go to step 2.

2 Run the INIT-SOC command to reset the SOC.

If the alarm is not cleared even after the SOC reset, contact Samsung.



A2103628R IMP SOC RESTART

This alarm occurs when the SOC resets and restarts.

Basic Information

Severity CRITICAL

Relates to Software

Category PROCESSING

Possible Cause(s)

The SOC resets and restarts (by using the SOC Reset command or replacing the

SOC image).

Impact

Cell services related to the SOC are not available during restart.

Remedy


1 Run the IN

Samsung MBS (LTE) Alarm Manual for SLR 3.1_v2.0

Documents