9125 trans coder alarm dictionary
TRANSCRIPT
Alcatel-Lucent GSM
9125 Transcoder Alarm Dictionary
BSC & TC Document
Reference Guide
Release B10
3BK 21265 AAAA PCZZA Ed.02
Status RELEASED
Short title TC Alarm Dico
All rights reserved. Passing on and copying of this document, useand communication of its contents not permitted without writtenauthorization from Alcatel-Lucent.
BLANK PAGE BREAK
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Contents
Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.2 A1353-RA AS Alarm Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.3 LMT Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101.4 Alarm Information Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2 Class 66: TSC_TRUNK Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172.1 [66,22] LOOP-TO-EQUIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182.2 [66,50] TWO-MB-MISSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192.3 [66,66] AIS-2-MB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.4 [66,81] FRAME-ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232.5 [66,86] CRC-MFRAME-ALGN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252.6 [66,99] BER-10E-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272.7 [66,100] BER-10E-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292.8 [66,102] BER-10E-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312.9 [66,176] FAR-END-ALARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332.10 [66,210] TRANS-FLT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352.11 [66,211] LOSS-OF-CLK-2M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372.12 [66,231] E1-AIS-2-MB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392.13 [66,232] E1-FRAME-ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412.14 [66,233] E1-CRC-MFRAME-ALGN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432.15 [66,234] E1-BER-10E-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452.16 [66,235] E1-BER-10E-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472.17 [66,236] E1-RAI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 492.18 [66,237] E1-BER-10E-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3 Class 102: TC_TRANS Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533.1 [102,210] SFP_UNEQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 543.2 [102,211] RS_LOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 553.3 [102,212] RS_LOF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 563.4 [102,214] MS_AIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 573.5 [102,215] MS_RDI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 583.6 [102,216] MS_SF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 593.7 [102,217] MS_SD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 603.8 [102,221] AU_LOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 613.9 [102,222] AU_AIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 623.10 [102,223] SFP_WRONGTYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 633.11 [102,231] HP_UNEQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 643.12 [102,232] HP_PLM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 653.13 [102,233] HP_RDI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 663.14 [102,234] HP_LOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4 Class 103: TC_IF Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.1 [103,0] RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 704.2 [103,1] TAKEOVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 714.3 [103,2] TAKEOVER_REFUSED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 724.4 [103,4] ACCESS_FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 734.5 [103,6] UNPLUGGED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 744.6 [103,7] HOST_FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 754.7 [103,10] HW_FAULT_FATAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 764.8 [103,11] TEMPERATURE_FATAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 774.9 [103,12] TEMPERATURE_MAJOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 784.10 [103,13] TEMPERATURE_MINOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 804.11 [103,14] VOLTAGE_FATAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
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Contents
4.12 [103,15] VOLTAGE_MAJOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 834.13 [103,16] VOLTAGE_MINOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 854.14 [103,17] RLC_OV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 874.15 [103,19] OBC_OVERLOADING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 894.16 [103,20] PROCESS_TERMINATION_FATAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 914.17 [103,23] HSI_FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 924.18 [103,24] FAN_FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 944.19 [103,28] INTERNAL_CLOCK_INCONSYSTENCY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 954.20 [103,29] POWER_SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
5 Class 105: TRANSCODER Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 975.1 [105,000] POWER-SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 985.2 [105,128] EQUIPMENT-FAULT(2nd or more DSP faulty - loop test) . . . . . . . . . . . . . . . . . . . . . 995.3 [105,130] MEMORY-FAULT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1015.4 [105,136] FIRST-DSP-FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1035.5 [105,148] RESET (1st DSP faulty, 2nd or more DSP faulty- HW watchdog- HW failure- more
than 3 autoresets in 24 hours.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1055.6 [105,210] TRANS-FLT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1065.7 [105,211] LOSS-OF-CLK-2M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1085.8 [105,216] RESTART (DSP restart OTP restart) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
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Preface
Preface
Purpose The purpose of the alarm dictionary is to provide the operator with a structuredmethod for handling alarm messages generated and reported by the 9125Transcoder.
This document contains a list of all 9125 Transcoder reported, and the actionsrequired to nullify them.
Alarms are displayed at the OMC-R terminal and at the LMT to inform theoperator of system faults.
Note: When a fault occurs, a number of alarms can be generated simultaneously.These alarms must be analyzed as a group to determine the precise fault.
What’s New In Edition 02The following alarms have been added:
[66,22] LOOP-TO-EQUIP (Section 2.1)
[66,50] TWO-MB-MISSING (Section 2.2)
[66,66] AIS-2-MB (Section 2.3)
[66,237] E1-BER-10E-6 (Section 2.18)For alarm class 66, alarms from 231 to 237 and for alarm class 105 theperceived security field was completed.
In Edition 01First official release of document.
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Preface
Audience This document is aimed at telecommunications operators responsible forperforming O&M fault handling and troubleshooting tasks.
Assumed Knowledge The operator must be familiar with the following:
Alcatel-Lucent O&M concepts for the BSS
MO scenario
Fault management
Use of OMC-R and BSC terminals
SBL hierarchies of the BTS, BSC and TC
Telecommunications techniques including line transmission and switching.
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1 Introduction
This section describes the structure of alarm messages.
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1 Introduction
1.1 OverviewThis alarm dictionary provides additional information that is not displayed in thealarm messages sent to the OMC-R, BSC or TC terminals.
The dictionary contains alarm definitions for each alarm type produced bythe BSS.
Each definition describes the:
Alarm definition
Alarm description
Impact on System
Methods for further fault isolation
Corrective actions.
1.2 A1353-RA AS Alarm InformationIn the A1353-RA OMC-R, Alarm Surveillance provides an efficient means tocontrol, supervise and manage equipment problems in the BSS.
Alarms or Alarm notifications consist of messages sent by network resourcesthat have detected problems or failures in the network. These alarms aredisplayed in lists while alarm counters keep track of statistics. By clicking on analarm in the list, the operator gets detailed information. AS displays informationas described below.
1.2.1 Object Identification
The Object Identification identifies the resource that raised the alarm.
Object identification gives information about:
The resource type (Object Class)
The resource name (Friendly Name). For a board, the Friendly Name alsoshows the board’s location by rack, shelf and slot.
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1.2.2 Alarm Type
The Alarm Type identifies the type of problem the alarm refers to.
This information is sub-divided into:
eventType. Table 1 describes the five eventTypes.
probableCause
perceivedSeverity: gives the severity level of the alarm. Table 2 describesthe severity levels.
eventType Indicates...
Communication a problem with a procedure or process used to convey information fromone point to another in the network.
Quality of Service degradation in the quality of service in the network.
Processing Error a software or processing fault.
Equipment an equipment fault.
Environmental a problem in the enclosure containing the equipment.
Table 1: Event Types
Severity Level Indicates...
Critical a serious fault condition which requires immediate correction. Example: amanaged object goes out of service.
Major a fault condition which requires urgent corrective action. Example: severedegradation in the operation of a managed object.
Minor a fault condition which does not affect service but corrective action shouldbe taken to avoid a more serious fault.
Warning detection of a potential fault condition. Action should be taken to diagnoseand correct the problem to avoid a more serious fault condition.
Indeterminate the severity level cannot be defined by the resource which raised the alarm.
Cleared the alarm was cleared by the resource which raised the alarm.
Table 2: Alarm Severity Levels
In addition to the Object Identification and Alarm Type information, all alarmsalways give the date and time of the alarm. An alarm may also contain optionalinformation, such as the notification id. Refer to the AS on-line help for moredetailed information on AS.
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1 Introduction
1.3 LMT Alarm MessagesThe format of Alarms displayed at a LMT differs from that in the OMC -R.
Depending on the type of alarm and where it is viewed, an alarm messagecontains all or most of the parameters listed in this section.
1.3.1 Message Identity
The identity number given to the alarm message stored in the OMC-R database.
1.3.2 Event Time
The time the message was issued at its source or received at the OMC-R.
1.3.3 Location
The origin of the alarm, consisting of:
Network element - the BSS identity
Unit type:
bts
bsc
tcsm
bie
tsc
bss.
Unit number:
0 or 1 for a tcsm
0 to 40 for a bie
1 for a bsc, tsc or bss
1 to 40 for a bts.
SBL type
SBL number and subnumber, if appropriate. For example, RTS (3, 4) is RTSnumber 4 of FU3 (the parent SBL).
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1.3.4 Classification
The characteristics of the alarm, consisting of:
Alarm Class name and number - as shown in the Contents list of the
Alarm Dictionary
Alarm Type name and number - as shown in the Contents list of the Alarm
Dictionary
Alarm Number - dependent on the Alarm Class and Type. See theappropriate dictionary entry for the valid alarm numbers for a particular alarm
Alarm Condition - has one of the following values:
begin - alarm on. For fatal failures, the affected SBL changes state to
FLT or FOS. For non-fatal failures, the affected SBL changes state to FIT
end - alarm off. Indicates the successful recovery of the system. The
affected SBL may not change state if other alarms related to theSBL are on
event - occurrence of anomaly. No action is required unless it occurs
frequently. Event alarms are of short duration and the affected SBLdoes not change state. The system retry/recovery mechanism has
cleared the fault.
If a fatal alarm occurs and the affected SBL changes state to FOS, the systemisolates the faulty equipment if it cannot be initialized. After a repair action, theoperator normally initializes the equipment.
If a fatal alarm occurs and the affected SBL changes state to FLT, the systemresets the faulty equipment. When the alarm ceases, the system automaticallyinitializes the equipment.
If a non-fatal alarm or event occurs, the affected SBL’s are put into the FIT state.In the worst situation, the equipment operates in a degraded mode.
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1.3.5 SBL States
An SBL has one of the following (current) states:
IT
FIT
Faulty
EF
FOS
OPR
SOS
WTC
UT
NEQ
MSD
MSD AUTO.
Refer to the Operations & Maintenance Principles for a description of the states.
1.3.6 RIT List
The information for the suspected RIT(s) is displayed if the system is able todetermine the location of the fault.
The information consists of:
Unit type - bts, bsc, tscm, bie, tsc or bss
Unit number -
0 or 1 for a tcsm
0 to 40 for a bie
1 for a bsc, tsc or bss
1 to 40 for a bts.
Physical location - the position of the RIT board within the cabinet. For
example, [A, 4, 21] indicates the board in slot 21 of rack 4 of cabinet A.For BSC and BTS equipment, the cabinets are identified as 1, 2, 3, etc.
instead of A, B, C, etc.
RIT type - the name of the RIT board.
If more than one RIT is shown in the list, the RIT most likely to be causing thefault is indicated. Replace this RIT first and initialize it. If the fault persists,replace another RIT from the list and initialize it.
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1.4 Alarm Information FormatEach alarm definition and description in the dictionary is structured as follows:
1.4.1 Alarm Definition
MO format LMT format
Banner Banner
specificProblems Alarm Class & [number] - Alarm Type & [number]
eventType -
probableCause -
perceived Severity Category
SBL SBL
Table 3: Alarm Definition:
1.4.2 Alarm Description
The Alarm description is structured as follows:
Alarm Description
Impact on System
Failure Identification Strategy (if applicable)
Corrective Actions.
1.4.3 Alarm Definition
1.4.3.1 BannerEach BSS alarm definition starts with an identification banner which allows thelocation of the appropriate definition. It takes the form:
[36, 7] TRUNK - LOS
1.4.3.2 eventTypeThe eventType attribute identifies the basic type of the alarm. Table 1 describesthe event Types.
1.4.3.3 specificProblemsThe specificProblems provides the alarm class name.
1.4.3.4 probableCauseThis attribute provides additional information as to the probable cause ofthe alarm. Its value belongs to a set of possible values either defined inrecommendation X.721 (for those that have a wide applicability) or defined fora particular TMN project.
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1.4.3.5 perceivedSeverityThis attribute gives the severity level of the alarm. Table 2 describes theseverity level.
The table below provides a mapping between the severity level shown inAS and at the LMT.
MO Severity LMT Category
Critical VPMA, SA
Major PMA
Minor DMA
Warning MI
Table 4: Mapping of MO Perceived Severity to LMT Category
1.4.4 Alarm Description
1.4.4.1 Alarm DescriptionThe Alarm Description describes the alarm and, where appropriate, thedifferences to the default perceived severities.
1.4.4.2 Impact on TelecomThis field describes the impact on the Telecom system behavior. It alsocontains a table indicating which part of the system is affected by the fault interms of loss, degradation or none.
For example, if a cell is affected, the cell column in the table contains a tick ( ) ineither the Loss or Degradation row. The tick can be doubled in any one column( ), indicating the primary impact of the alarm. If the column has a tick in theNone row, that part of the system is unaffected by the fault. For different impactcases (redundancy, diversity, etc.) more symbols, like ladders (#), are used.
The table indicates the worst case, even though redundancy may be provided.
1.4.4.3 Impact on SystemThe impact on the system is defined in terms of Telecom and/or O&M.;
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1 Introduction
1.4.4.4 Failure Identification StrategySometimes more information is necessary to determine the precise fault. TheFailure Identification Strategy lists the checks and tests to perform to obtainthis information.
The additional data is gathered from:
Diagnosis/tests to be applied - appropriate on-site or remote diagnostic and
test procedures to perform
Complex system alarm correlation - other checks that can provide moreinformation about the fault.
Checks that determine whether:
The failure is provoked by a problem external to the reporting unit
Multiple or repetitive failures are reported by one or more similar SBLs
The performance of the affected subsystem is degraded. Newperformance measurements can be compared with previous
measurements.
Resource and data verification - checks that determine whether:
Hardware is serviceable or available. The items checked are passive
items, such as cables, links and boards that do not report their state, andempty slots in subracks
Software versions and parameter settings are correct.
1.4.4.5 Corrective ActionsA description of the recovery actions to be performed by the operator ormaintenance staff. The recovery actions are based on the information providedby the alarm message or the results of diagnostic actions.
To solve the alarm, a graphical flowchart is used. It shows the required checks,tests and actions to be performed to determine the fault and to solve thealarm. The figure below shows an example of a flowchart and describesthe different flowchart fields.
Click on a dedicated action field to display the detailed description of the task.
Some alarms provide additional information. If it is displayed as a text message,the original information from the BSS has been decoded.
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1 Introduction
[32,0] CONV
Alarmsolved
yesConverteroperational?
no
On−site
ContactSystem Support
Restart faulty converter by disengaging/engaging RIT
Identify the faulty DC/DC converter indicated by red illuminated LED.
On−site
On−site
Replace BSC RIT
Alarmsolved
yesConverteroperational?
no
Start field with alarm numberand alarm name
On−site action fields
Decision field
On−site action fields
Decision field
End Field
Figure 1: Graphical Flowchart for Corrective Actions
If the additional information is not decoded, it is displayed as pairs ofhexadecimal digits. At the BSC terminal, the additional information consistsof numbers in the range 0 to 255. Each number represents the contentsof one pair of digits.
Decoding Additional Information from AlarmsDecoding BSC additional information must only be attempted by Alcatel-Lucentsystem support personnel.If a fault persists after corrective actions have been taken, send a copy of thealarm message containing the additional information to the Alcatel-LucentSystem Support office.
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2 Class 66: TSC_TRUNK Alarms
2 Class 66: TSC_TRUNK Alarms
This section defines the BSC alarms for the Class 66: TSC_TRUNK alarmclass.
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2 Class 66: TSC_TRUNK Alarms
2.1 [66,22] LOOP-TO-EQUIP
specificProblems TSC_TRUNK [66] LOOP-TO-EQUIP [22]
Event Type equipment
probableCause equipmentUnderTest
perceivedSeverity major
Alarm Description An external loop is closed on an interface
Applicability MT120
Impact on System See Consequences of an SBL State ChangeIT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss Yes Yes
Degradation – –
2.1.1 Corrective Action
[66,22] LOOP−TO−EQUIP
Remove the loopback settings, though normal conditions return
after a preset control timeout.
Alarmsolved
yes
Alarm persists?
no
ContactSystem Support
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2 Class 66: TSC_TRUNK Alarms
2.2 [66,50] TWO-MB-MISSING
specificProblems TSC_TRUNK [66] TWO-MB-MISSING [50]
Event Type communication
probableCause lossOfSignal
perceivedSeverity major
Alarm Description Loss of Incoming Signal
Applicability MT120
Impact on System See Consequences of an SBL State ChangeIT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR - The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss Yes Yes
Degradation – –
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2 Class 66: TSC_TRUNK Alarms
2.2.1 Corrective Action
[66,50] TWO−MB−MISSING
Solve thatalarm(s) first
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Repair/replace Receiver
2M link−related
alarm events?
no
yes
On−site
Alarmsolved
Alarm persists?
noyes
Alarm persists?
no
yes
Receiver operational?
no yes
Solve that alarm(s)Related
receiver alarm events?
no
yes
Local trunk cabling
OK?
no
yes
Trigger remote signal path and transmitter tests on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.3 [66,66] AIS-2-MB
specificProblems TSC_TRUNK [66] AIS-2-MB [66]
Event Type communication
probableCause localNodeTransmissionError
perceivedSeverity minor
Alarm Description 2 Mbit/s interface is receiving AIS signal (All ones Indication)
Applicability MT120
Impact on System See Consequences of an SBL State ChangeIT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR - The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss Yes Yes
Degradation – –
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2 Class 66: TSC_TRUNK Alarms
2.3.1 Corrective Action
[66,66] AIS−2−MB
Remove loop
Solve that alarm(s)
Contact
System Support
ABIS/
APCM/ATER alarm
events?
no
yes
Loop
activated?
no
yes
Alarm
solved
Alarm
persists?
no
yes
Alarm
solved
Alarm
persists?
no
yes
Trigger remote signal
path and transmitter
tests on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.4 [66,81] FRAME-ALIGNMENT
specificProblems TSC_TRUNK [66] FRAME-ALIGNMENT [81]
Event Type communication
probableCause lossOfFrame
perceivedSeverity major
Alarm Description Loss of frame alignment
Applicability MT120
Impact on System See Consequences of an SBL State ChangeIT - The telecom linkbetween the TC and the MSC is functioning correctly.FIT - Degradationin the telecom and O&M link between the TC and the MSC.FLT - Lossof telecom and O&M link between the TC and the MSC.OPR - Thealarm reporting on the transmission link is disabled.
Impact BSS O&M; Capabilities
Loss Yes Yes
Degradation – –
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2 Class 66: TSC_TRUNK Alarms
2.4.1 Corrective Action
[66,81] FRAME−ALIGNMENT
Correct timeslot 0 settings
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Timeslot 0 settings
OK?
no
yes
Alarm persists?
no
Alarmsolved
Alarm persists?
no
yes
Trigger remote signal path and transmitter tests on MSC side
yes
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2 Class 66: TSC_TRUNK Alarms
2.5 [66,86] CRC-MFRAME-ALGN
specificProblems TSC_TRUNK [66] CRC-MFRAME-ALGN [86]
Event Type communication
probableCause lossOfFrame
perceivedSeverity major
Alarm Description Loss of CRC multiframe alignment
Applicability MT120
Impact on System See Consequences of an SBL State ChangeIT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR - The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss Yes No
Degradation – –
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2 Class 66: TSC_TRUNK Alarms
2.5.1 Corrective Action
[66,86] CRC−MFRAME−ALIGNMENT
Correct timeslot 0 CRC settings
ContactSystem Support
Timeslot 0 CRC settings
OK?
no
yes
Alarm persists?
no
yes
Alarmsolved
Alarm persists?
no
yes
Trigger tests of remote CRC activation on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.6 [66,99] BER-10E-3
specificProblems TSC_TRUNK [66] BER-10E-3 [99]
Event Type communication
probableCause degradedSignal
perceivedSeverity major
Alarm Description Error rate > E-3
Applicability MT120
Impact on System See Consequences of an SBL State ChangeIT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR - The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss Yes No
Degradation – –
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2 Class 66: TSC_TRUNK Alarms
2.6.1 Corrective Action
[66,99] BER−10E−3
Solve thatalarm(s) first
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Repair/replace Receiver
Link−relatedalarm events?
no
yes
On−site
Alarm persists?
noyes
Alarmsolved
Alarm persists?
no
yes
Receiver operational?
no yes
Solve that alarm(s)
Related receiver alarm
events?
no
yes
Local trunk cabling
OK?
no
yes
Trigger remote signal path and transmitter tests on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.7 [66,100] BER-10E-4
specificProblems TSC_TRUNK [66] BER-10E-4 [100]
Event Type communication
probableCause degradedSignal
perceivedSeverity minor
Alarm Description Error rate > E-4
Applicability MT120
Impact on System See Consequences of an SBL State ChangeIT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR - The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss No No
Degradation – –
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2 Class 66: TSC_TRUNK Alarms
2.7.1 Corrective Action
[66,100] BER−10E−4
Solve thatalarm(s) first
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Repair/replace Receiver
Link−relatedalarm events?
no
yes
On−site
Alarm persists?
noyes
Alarmsolved
Alarm persists?
no
yes
Receiver operational?
no yes
Solve that alarm(s)Related
receiver alarm events?
no
yes
Localtrunk cabling
OK?
no
yes
Trigger remote signal path and transmitter tests on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.8 [66,102] BER-10E-6
specificProblems TSC_TRUNK [66] BER-10E-6 [102]
Event Type communication
probableCause degradedSignal
perceivedSeverity minor
Alarm Description Error rate > E-6
Applicability MT120
Impact on System See Consequences of an SBL State ChangeIT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR - The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss No No
Degradation – –
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2 Class 66: TSC_TRUNK Alarms
2.8.1 Corrective Action
[66,102] BER−10E−6
Solve thatalarm(s) first
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Repair/replace Receiver
Link−relatedalarm events?
no
yes
On−site
Alarm persists?
noyes
Alarmsolved
Alarm persists?
no
yes
Receiver operational?
no yes
Solve that alarm(s)Related
receiver alarm events?
no
yes
Local trunk cabling
OK?
no
yes
Trigger remote signal path and transmitter tests on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.9 [66,176] FAR-END-ALARM
specificProblems TSC_TRUNK [66] FAR-END-ALARM [176]
Event Type communication
probableCause localNodeTransmissionError
perceivedSeverity minor
Alarm Description Remote Alarm Indication
Applicability MT120
Impact on System See Consequences of an SBL State Change.IT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR - The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss Yes No
Degradation – –
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2 Class 66: TSC_TRUNK Alarms
2.9.1 Corrective Action
[66,176] FAR−END−
ALARM
Solve that alarm(s)
Contact
System Support
ABIS/
APCM/ATER alarm
events?
no
yes
Alarm
solved
Alarm
persists?
no
yes
Solve that alarm(s)
Related
receiver alarm
events?
no
yes
Trigger remote signal
path and transmitter
tests on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.10 [66,210] TRANS-FLT
specificProblems TSC_TRUNK [66] TRANS-FLT [210]
Event Type equipment
probableCause equipmentMalfunction
perceivedSeverity indeterminate
Alarm Description For each PCM event, a counter is increased
Applicability MT120
Impact on System See Consequences of an SBL State Change.IT - The telecom linkbetween the TC and the MSC is functioning correctly.FIT - Degradationin the telecom and O&M link between the TC and the MSC.FLT - Lossof telecom and O&M link between the TC and the MSC.OPR - Thealarm reporting on the transmission link is disabled.
Impact BSS O&M; Capabilities
Loss No No
Degradation – –
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2 Class 66: TSC_TRUNK Alarms
2.10.1 Corrective Action
[66,210] TRANS−FLT
Solve thatalarm(s) first
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Repair/replace Receiver
Link−relatedalarm events?
no
yes
On−site
Alarm persists?
noyes
Alarmsolved
Alarm persists?
no
yes
Receiver operational?
no yes
Solve that alarm(s)Related
receiver alarm events?
no
yes
Local trunk cabling
OK?
no
yes
Trigger remote signal path and transmitter tests on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.11 [66,211] LOSS-OF-CLK-2M
specificProblems TSC_TRUNK [66] LOSS-OF-CLK-2M [211]
Event Type equipment
probableCause timingProblem
perceivedSeverity minor
Alarm Description Loss of clock 2Mhz. The next clock source is selected if available
Applicability MT120
Impact on System See Consequences of an SBL State Change.IT - The telecom linkbetween the TC and the MSC is functioning correctly.FIT - Degradationin the telecom and O&M link between the TC and the MSC.FLT - Lossof telecom and O&M link between the TC and the MSC.OPR - Thealarm reporting on the transmission link is disabled.
Impact BSS O&M; Capabilities
Loss Yes No
Degradation – –
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2 Class 66: TSC_TRUNK Alarms
2.11.1 Corrective Action
[66,211] LOSS−OF−CLOCK−2M
Solve thatalarm(s) first
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Repair/replace Receiver
Link−relatedalarm events?
no
yes
On−site Alarm persists?
noyes
Alarmsolved
Alarm persists?
no
yes
Receiver operational?
no yes
Solve that alarm(s)Related
receiver alarm events?
no
yes
Local trunk cabling
OK?
no
yes
Trigger remote signal path and transmitter tests on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.12 [66,231] E1-AIS-2-MB
specificProblems TSC_TRUNK [66] E1-AIS-2-MB [231]
Event Type communication
probableCause remoteAlarmInterface
perceivedSeverity minor
Alarm Description Alarm Indication Signal
Applicability STM-1
Impact on System See Consequences of an SBL State ChangeIT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR - The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss Yes No
Degradation No No
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2 Class 66: TSC_TRUNK Alarms
2.12.1 Corrective Action
[66, 231] AIS−2−MB
Remove loop
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Loop activated?
no
yes
Alarmsolved
Alarm persists?
no
yes
Alarmsolved
Alarm persists?
no
yes
Trigger remote signal path and transmitter tests on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.13 [66,232] E1-FRAME-ALIGNMENT
specificProblems TSC_TRUNK [66] E1-FRAME-ALIGNMENT [232]
Event Type communication
probableCause lossOfFrame
perceivedSeverity major
Alarm Description Loss of Frame Alignment
Applicability STM-1
Impact on System See Consequences of an SBL State ChangeIT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR - The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss Yes No
Degradation No No
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2 Class 66: TSC_TRUNK Alarms
2.13.1 Corrective Action
[66, 232] E1 FRAME−ALIGNMENT
Correct timeslot 0 settings
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Timeslot 0 settings
OK?
no
yes
Alarm persists?
no
Alarmsolved
Alarm persists?
no
yes
Trigger remote signal path and transmitter tests on MSC side
yes
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2 Class 66: TSC_TRUNK Alarms
2.14 [66,233] E1-CRC-MFRAME-ALGN
specificProblems TSC_TRUNK [66] E1-CRC-MFRAME-ALGN [233]
Event Type communication
probableCause lossOfMultiFrame
perceivedSeverity major
Alarm Description Loss of CRC-4 Multiframe Alignment
Applicability STM-1
Impact on System See Consequences of an SBL State ChangeIT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR - The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss Yes No
Degradation No No
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2 Class 66: TSC_TRUNK Alarms
2.14.1 Corrective Action
[66, 233] E1 CRC−MFRAME−ALIGNMENT
Correct timeslot 0 CRC settings
ContactSystem Support
Timeslot 0 CRC settings
OK?
no
yes
Alarm persists?
no
yes
Alarmsolved
Alarm persists?
no
yes
Trigger tests of remote CRC activation
on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.15 [66,234] E1-BER-10E-3
specificProblems TSC_TRUNK [66] E1-BER-10E-3 [234]
Event Type communication
probableCause degradedSignal
perceivedSeverity major
Alarm Description Bit Error Rate 10E-3
Applicability STM-1
Impact on System See Consequences of an SBL State ChangeIT - The telecom linkbetween the TC and the MSC is functioning correctly.FIT - Degradationin the telecom and O&M link between the TC and the MSC.FLT - Lossof telecom and O&M link between the TC and the MSC.OPR - Thealarm reporting on the transmission link is disabled.
Impact BSS O&M; Capabilities
Loss Yes No
Degradation No No
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2 Class 66: TSC_TRUNK Alarms
2.15.1 Corrective Action
[66, 234] E1 BER−10E−3
Solve thatalarm(s) first
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Repair/replace Receiver
Link−relatedalarm events?
no
yes
On−site
Alarm persists?
noyes
Alarmsolved
Alarm persists?
no
yes
Receiver operational?
no yes
Solve that alarm(s)Related
receiver alarm events?
no
yes
Local trunk cabling
OK?
no
yes
Trigger remote signal path and transmitter tests on MSC side
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2 Class 66: TSC_TRUNK Alarms
2.16 [66,235] E1-BER-10E-4
specificProblems TSC_TRUNK [66] E1-BER-10E-4 [235]
Event Type communication
probableCause degradedSignal
perceivedSeverity minor
Alarm Description Bit Error Rate 10E-4
Applicability STM-1
Impact on System See Consequences of an SBL State ChangeIT - The link between thetwo submultiplexers is functioning correctly.FLT - Loss of link betweenthe two submultiplexers.OPR - The alarm reporting on the transmissionlink is disabled.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
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2 Class 66: TSC_TRUNK Alarms
2.16.1 Corrective Action
[66, 235] E1 BER−10E−4
Solve thatalarm(s) first
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Repair/replace Receiver
Link−relatedalarm events?
no
yes
On−site
Alarm persists?
noyes
Alarmsolved
Alarm persists?
no
yes
Receiver operational?
no yes
Solve that alarm(s)Related
receiver alarm events?
no
yes
Localtrunk cabling
OK?
no
yes
Trigger remote signal path and transmitter tests on MSC side
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2.17 [66,236] E1-RAI
specificProblems TSC_TRUNK [66] E1-RAI [236]
Event Type communication
probableCause remoteAlarmInterface
perceivedSeverity minor
Alarm Description Remote Alarm Indication
Applicability STM-1
Impact on System Whenever a failure occurs, the trunk is autonomously disabled.Blockingand release of all associated A-channels is carried out.RAI is the signalsent on the E1 by a remote transmission node as a response to thedetection of a fatal transmission fault (AIS, LIS, LFA.).This is the TCview of transmission, please check for transmission alarms.
Impact BSS O&M; Capabilities
Loss – –
Degradation Yes No
2.17.1 Corrective Action
[66, 236] E1−RAI
ContactSystem Support
Alarmsolved
Alarm persists?
no
yes
Check transmission alarms (AIS, LIS, LFA)
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2 Class 66: TSC_TRUNK Alarms
2.18 [66,237] E1-BER-10E-6
specificProblems TSC_TRUNK [66] E1-BER-10E-6 [237]
Event Type communication
probableCause degradedSignal
perceivedSeverity minor
Alarm Description Bit Error Rate 10E-6
Applicability STM-1
Impact on System See Consequences of an SBL State ChangeIT - The telecom linkbetween the TC and the MSC is functioning correctly.FIT - Degradationin the telecom and O&M link between the TC and the MSC.FLT - Lossof telecom and O&M link between the TC and the MSC.OPR - Thealarm reporting on the transmission link is disabled.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
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2.18.1 Corrective Action
[66, 237] E1 BER−10E−6
Solve thatalarm(s) first
Solve that alarm(s)
ContactSystem Support
ABIS/APCM/ATER alarm
events?
no
yes
Repair/replace Receiver
Link−relatedalarm events?
no
yes
On−site
Alarm persists?
noyes
Alarmsolved
Alarm persists?
no
yes
Receiver operational?
no yes
Solve that alarm(s)Related
receiver alarm events?
no
yes
Local trunk cabling
OK?
no
yes
Trigger remote signal path and transmitter tests on MSC side
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3 Class 102: TC_TRANS Alarms
3 Class 102: TC_TRANS Alarms
This section defines the BSC alarms for the Class 102: TC_TRANS alarm class.
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3 Class 102: TC_TRANS Alarms
3.1 [102,210] SFP_UNEQ
specificProblems TC_TRANS [102] SFP_UNEQ [210]
Event Type communication
probableCause equipmentMalfunction
perceivedSeverity major
Alarm Description Small Form-Factor Pluggable not equipped
Applicability STM-1
Impact on System APS switching (the redundant STM1 link will become active)
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.1.1 Corrective Action
[102, 210] SFP_UNEQ
Check and repair the standby STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.2 [102,211] RS_LOS
specificProblems TC_TRANS [102] RS_LOS [211]
Event Type communication
probableCause lossOfSignal
perceivedSeverity major
Alarm Description Section Loss Of Signal
Applicability STM-1
Impact on System APS switching (the redundant STM1 link will become active)
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.2.1 Corrective Action
[102, 211] RS_LOS
Check and repair the standby STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.3 [102,212] RS_LOF
specificProblems TC_TRANS [102] RS_LOF [212]
Event Type communication
probableCause lossOfFrame
perceivedSeverity major
Alarm Description Section Loss Of Frame
Applicability STM-1
Impact on System APS switching (the redundant STM1 link will become active)
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.3.1 Corrective Action
[102, 212] RS_LOF
Check and repair the standby STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.4 [102,214] MS_AIS
specificProblems TC_TRANS [102] MS_AIS [214]
Event Type communication
probableCause localNodeTransmissionError
perceivedSeverity major
Alarm Description Multiplex Section Alarm Indication Signal
Applicability STM-1
Impact on System APS switching (the redundant STM1 link will become active)
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.4.1 Corrective Action
[102, 214] MS_AIS
Check and repair the standby STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.5 [102,215] MS_RDI
specificProblems TC_TRANS [102] MS_RDI [215]
Event Type communication
probableCause remoteNodeTransmissionError
perceivedSeverity major
Alarm Description Multiplex Section Remote Defect Indication
Applicability STM-1
Impact on System Physical layer error indicator. STM-1 TTP isunlocked/enabled/degraded. No APS switching foreseen.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.5.1 Corrective Action
[102, 215] MS_RDI
Check and repair the STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.6 [102,216] MS_SF
specificProblems TC_TRANS [102] MS_SF [216]
Event Type communication
probableCause degradedSignal
perceivedSeverity major
Alarm Description Multiplex Section signal failed Bit Error Rate 10-3
Applicability STM-1
Impact on System APS switching (the redundant STM1 link will become active)
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.6.1 Corrective Action
[102, 216] MS_SF
Check and repair the standby STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.7 [102,217] MS_SD
specificProblems TC_TRANS [102] MS_SD [217]
Event Type communication
probableCause degradedSignal
perceivedSeverity major
Alarm Description Multiplex Section signal degraded Bit Error Rate 10-6
Applicability STM-1
Impact on System Physical layer error indicator. STM-1 TTP isunlocked/enabled/degraded. No APS switching foreseen.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.7.1 Corrective Action
[102, 217] MS_SD
Check and repair the STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.8 [102,221] AU_LOP
specificProblems TC_TRANS [102] AU_LOP [221]
Event Type communication
probableCause lossOfPointer
perceivedSeverity major
Alarm Description Administrative Unit 4 Loss of Pointer
Applicability STM-1
Impact on System STM-1 Interface is unlocked/disable/failed.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.8.1 Corrective Action
[102, 221] AU_LOP
Check and repair the standby STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.9 [102,222] AU_AIS
specificProblems TC_TRANS [102] AU_AIS [222]
Event Type communication
probableCause degradedSignal
perceivedSeverity major
Alarm Description Administrative Unit 4 Alarm Indication Signal
Applicability STM-1
Impact on System STM-1 Interface is unlocked/disable/failed.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.9.1 Corrective Action
[102, 222] AU_AIS
Check and repair the STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.10 [102,223] SFP_WRONGTYPE
specificProblems TC_TRANS [102] SFP_WRONGTYPE [223]
Event Type equipment
probableCause equipmentMalfunction
perceivedSeverity major
Alarm Description A SFP different from type 1 has been plugged in
Applicability STM-1
Impact on System STM-1 TTP is unlocked/disable/failed. APS switching.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.10.1 Corrective Action
[102, 223]SFP_WRONGTYPE
Change the SFP connector type with a type 1.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.11 [102,231] HP_UNEQ
specificProblems TC_TRANS [102] HP_UNEQ [231]
Event Type communication
probableCause equipmentMalfuncton
perceivedSeverity major
Alarm Description High Order Path Unequipped
Applicability STM-1
Impact on System STM-1 Interface is unlocked/disabled/failed.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.11.1 Corrective Action
[102, 231]HP_UNEQ
Check and repair the STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.12 [102,232] HP_PLM
specificProblems TC_TRANS [102] HP_PLM [232]
Event Type communication
probableCause pathTraceMismatch
perceivedSeverity major
Alarm Description High Order Path Payload Label Mismatch
Applicability STM-1
Impact on System STM-1 Interface is unlocked/disable/failed.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.12.1 Corrective Action
[102, 232] HP_PLM
Check and repair the STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.13 [102,233] HP_RDI
specificProblems TC_TRANS [102] HP_RDI [233]
Event Type communication
probableCause remoteAlarmInterface
perceivedSeverity major
Alarm Description High Order Path Remote Defect Indication
Applicability STM-1
Impact on System STM-1 Interface is unlocked/enabled/degraded.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.13.1 Corrective Action
[102, 233] HP_RDI
Check and repair the STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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3 Class 102: TC_TRANS Alarms
3.14 [102,234] HP_LOM
specificProblems TC_TRANS [102] HP_LOM [234]
Event Type communication
probableCause lossOfFrame
perceivedSeverity major
Alarm Description High Order Path Loss of Multiframe
Applicability STM-1
Impact on System STM-1 Interface is unlocked/disable/failed.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
3.14.1 Corrective Action
[102, 234] HP_LOM
Check and repair the STM1 link.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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4 Class 103: TC_IF Alarms
4 Class 103: TC_IF Alarms
This section defines the BSC alarms for the Class 103: TC_IF alarm class.
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4 Class 103: TC_IF Alarms
4.1 [103,0] RESET
specificProblems TC_IF [103] RESET [0]
Event Type processingError
probableCause softwareError
perceivedSeverity indeterminate
Alarm Description TCIF board reset. An autonomous reset of a TCIF board occurred.
Applicability TCIF
Impact on System The SBL state remains unchanged.The impact depends on the type ofTCIF state.Standby TCIF: O&M functions are not affected. Telecomfunctions are not affected.Active TCIF: A takeover occurs if the standbyTCIF is IT; the standby TCIF now becomes active. Communicationwith the OMC-R is lost for someseconds. Telecom functions are notaffected.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
4.1.1 Corrective Action
None. The TCIF returns to service automatically.
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4 Class 103: TC_IF Alarms
4.2 [103,1] TAKEOVER
specificProblems TC_IF [103] TAKEOVER [1]
Event Type processingError
probableCause softwareProgramAbnormallyTerminated
perceivedSeverity indeterminate
Alarm Description TCIF Takeover was triggered. There has been a change in the activeTCIF board in the case of an active/standby board pair. The previouslyactive TCIF goes into standby mode. This event is generated onlywhen a takeover occurs.This event is generated also for the STM1takeover in the case of working/protected STM1 pair.
Applicability TCIF
Impact on System The SBL state remains unchanged.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
4.2.1 Corrective Action
None. The TCIF function returns to service automatically.
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4 Class 103: TC_IF Alarms
4.3 [103,2] TAKEOVER_REFUSED
specificProblems TC_IF [103] TAKEOVER_REFUSED [2]
Event Type equipment
probableCause softwareProgramAbnormallyTerminated
perceivedSeverity indeterminate
Alarm Description Sent when the takeover cannot take place because the standby isnot available (failed also, or in unstable state) or because of otherproblems. This event is generated for both TCIF and STM1 cases.
Applicability TCIF
Impact on System The active TCIF will be reset, if the takeover is refused for the Tcifboard. In case of STM1 takeover refused, the traffic is lost for thatSTM1 interface.
Impact BSS O&M; Capabilities
Loss No No
Degradation Yes Yes
4.3.1 Corrective Action
[103, 2] TAKEOVER REFUSED
Check and repair the status of the
Stanby TCIF board.
Alarmsolved
yes
Alarm persists?
no
ContactSystem Support
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4 Class 103: TC_IF Alarms
4.4 [103,4] ACCESS_FAIL
specificProblems TC_IF [103] ACCESS_FAIL [4]
Event Type equipment
probableCause softwareProgramAbnormallyTerminated
perceivedSeverity indeterminate
Alarm Description Communication problem between the active and the standby TCIFboards
Applicability TCIF
Impact on System Contact with the standby TCIF has been lost.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
4.4.1 Corrective Action
[103, 4] ACCESS FAIL
Test both TCIF internal ethernet connections.
Alarmsolved
yes
Alarm persists?
no
ContactSystem Support
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4 Class 103: TC_IF Alarms
4.5 [103,6] UNPLUGGED
specificProblems TC_IF [103] UNPLUGGED [6]
Event Type equipment
probableCause equipmentUnplugged
perceivedSeverity major
Alarm Description TCIF board unplugged. The board was removed from the shelf. Alarmwill be cleared after board re-insertion.
Applicability TCIF
Impact on System There is no system impact if the board is the standby TCIF. If the boardis the active TCIF, then a takeover is triggered.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
4.5.1 Corrective Action
None. The board is unplugged.
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4 Class 103: TC_IF Alarms
4.6 [103,7] HOST_FAILURE
specificProblems TC_IF [103] HOST_FAILURE [7]
Event Type processingError
probableCause equipmentMalfunction
perceivedSeverity critical
Alarm Description TCIF control function failure
Applicability TCIF
Impact on System TCIF internal processes are affected. If the alarm is raised on theactive TCIF, the O&M function of the TCIF to supervise the MT120boards is lost (for all the MT120 boards supervised by this TCIF)
Impact BSS O&M; Capabilities
Loss No Yes
Degradation No Yes
4.6.1 Corrective Action
[103, 7] HOST_FAILURE
Reset TCIF board.
Alarmsolved
yes
Alarm persists?
no
ContactSystem Support
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4 Class 103: TC_IF Alarms
4.7 [103,10] HW_FAULT_FATAL
specificProblems TC_IF [103] HW_FAULT_FATAL [10]
Event Type equipment
probableCause equipmentMalfunction
perceivedSeverity critical
Alarm Description Fatal HW failure on TCIF
Applicability TCIF
Impact on System A fatal HW failure occurs.The impacted TCIF SBL state is changed toFOS. If the alarm appears on the active TCIF a takeover is triggered.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
4.7.1 Corrective Action
[103, 10] HW_FAULT_FATAL
Replace the faulty board.
Alarmsolved
yes
Alarm persists?
no
ContactSystem Support
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4 Class 103: TC_IF Alarms
4.8 [103,11] TEMPERATURE_FATAL
specificProblems TC_IF [103] TEMPERATURE_FATAL [11]
Event Type equipment
probableCause temperatureUnacceptable
perceivedSeverity critical
Alarm Description Fatal temperature over-heat. Hardware or environmental fatal alarm.Temperature of the unit is over the "critical" threshold.
Applicability TCIF
Impact on System The board is powered off and the impacted SBL is set to FOS. A TCIFtakeover occurs, if the alarm appears on the active TCIF board. Thereis no other system impact.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
4.8.1 Corrective Action
[103, 11] TEMPERATURE_FATAL
Check the FAN module integrity and environment.
Alarmsolved
yes
Alarm persists?
no
ContactSystem Support
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4 Class 103: TC_IF Alarms
4.9 [103,12] TEMPERATURE_MAJOR
specificProblems TC_IF [103] TEMPERATURE_MAJOR [12]
Event Type equipment
probableCause temperatureUnacceptable
perceivedSeverity major
Alarm Description High temperature over-heat. Hardware or environmental major alarm.Temperature of the unit is over the "major" threshold. That may impactthe functional status.
Applicability TCIF
Impact on System The impacted SBL is set to FLT. A takeover occurs, if the alarmsappears on the active Tcif board. The faulty board is reset.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
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4 Class 103: TC_IF Alarms
4.9.1 Corrective Action
[103, 12] TEMPERATURE_MAJOR
Check the FAN module integrity and environment.
Alarmsolved
yes
Alarm persists?
no
ContactSystem Support
Reset the board.
Alarm persists?
no
yes
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4 Class 103: TC_IF Alarms
4.10 [103,13] TEMPERATURE_MINOR
specificProblems TC_IF [103] TEMPERATURE_MINOR [13]
Event Type equipment
probableCause temperatureUnacceptable
perceivedSeverity minor
Alarm Description Non-Fatal temperature over-heat. Hardware or environmental minoralarm. Temperature of the unit is over the "minor" threshold. Thefunctional status is not impacted.
Applicability TCIF
Impact on System The impacted SBL is set to FIT. There is no other system impact.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
4.10.1 Corrective Action
[103, 13] TEMPERATURE_MINOR
Check the FAN module integrity and environment.
Alarmsolved
yes
ContactSystem Support
Alarm persists?
no
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4 Class 103: TC_IF Alarms
4.11 [103,14] VOLTAGE_FATAL
specificProblems TC_IF [103] VOLTAGE_FATAL [14]
Event Type equipment
probableCause powerProblem
perceivedSeverity critical
Alarm Description Power supply voltage is over critical threshold. The functional status isimpacted and the board is powered off.
Applicability TCIF
Impact on System The board is powered off and the impacted SBL is set to FOS. A TCIFtakeover occurs, if the alarm appears on the active TCIF board. Thereis no other system impact.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
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4 Class 103: TC_IF Alarms
4.11.1 Corrective Action
[103, 14] VOLTAGE_FATAL
Check the TC rack breaker.
Alarmsolved
yes
ContactSystem Support
Alarm persists?
no
Replace the TCIF board
Alarm persists?
no
yes
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4 Class 103: TC_IF Alarms
4.12 [103,15] VOLTAGE_MAJOR
specificProblems TC_IF [103] VOLTAGE_MAJOR [15]
Event Type equipment
probableCause powerProblem
perceivedSeverity major
Alarm Description Power supply voltage is over major threshold. The functional statusmay be impacted.The power status is severely degraded.
Applicability TCIF
Impact on System The impacted SBL is set to FLT. A takeover occurs in case of faultyactive Tcif and the faulty board is reset.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
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4 Class 103: TC_IF Alarms
4.12.1 Corrective Action
[103, 15] VOLTAGE_MAJOR
Check the TC rack breaker.
Alarmsolved
yes
ContactSystem Support
Alarm persists?
no
Replace the TCIF board
Alarm persists?
no
yes
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4 Class 103: TC_IF Alarms
4.13 [103,16] VOLTAGE_MINOR
specificProblems TC_IF [103] VOLTAGE_MINOR [16]
Event Type equipment
probableCause powerProblem
perceivedSeverity minor
Alarm Description Power supply voltage is over minor threshold. The functional status isnot impacted. The power status is degraded.
Applicability TCIF
Impact on System The impacted SBL is set to FIT. There is no other system impact.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
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4 Class 103: TC_IF Alarms
4.13.1 Corrective Action
[103, 16] VOLTAGE_MINOR
Check the TC rack breaker.
Alarmsolved
yes
ContactSystem Support
Alarm persists?
no
Replace the TCIF board
Alarm persists?
no
yes
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4 Class 103: TC_IF Alarms
4.14 [103,17] RLC_OV
specificProblems TC_IF [103] RLC_OV [17]
Event Type processingError
probableCause softwareError
perceivedSeverity critical
Alarm Description The board has reset more then 3 times in 1 hour
Applicability TCIF
Impact on System The board is powered off and the impacted SBL is set to FOS.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
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4 Class 103: TC_IF Alarms
4.14.1 Corrective Action
[103, 17] RLC_OV
Unplug and Plug again the faulty TCIF board.
Alarmsolved
yes
ContactSystem Support
Alarm persists?
no
Replace the TCIF board
Alarm persists?
no
yes
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4 Class 103: TC_IF Alarms
4.15 [103,19] OBC_OVERLOADING
specificProblems TC_IF [103] OBC_OVERLOADING [19]
Event Type processingError
probableCause equipmentMalfunction
perceivedSeverity minor
Alarm Description TCIF OnBoardControler processor overloaded
Applicability TCIF
Impact on System The impacted TCIF SBL state is changed to FIT.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
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4 Class 103: TC_IF Alarms
4.15.1 Corrective Action
[103, 19] OBC_OVERLOADING
Reset the board.
Alarmsolved
yes
ContactSystem Support
Alarm persists?
no
Replace the TCIF board
Alarm persists?
no
yes
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4 Class 103: TC_IF Alarms
4.16 [103,20] PROCESS_TERMINATION_FATAL
specificProblems TC_IF [103] PROCESS_TERMINATION_FATAL [20]
Event Type processingError
probableCause softwareProgramAbnormallyTerminated
perceivedSeverity indeterminate
Alarm Description TCIF fatal process termination
Applicability TCIF
Impact on System The impacted Tcif will be reset.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
4.16.1 Corrective Action
[103, 20] PROCESS_TERMINATION_FATAL
Check and repair the status of the
TCIF board.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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4 Class 103: TC_IF Alarms
4.17 [103,23] HSI_FAILURE
specificProblems TC_IF [103] HSI_FAILURE [23]
Event Type communication
probableCause softwareError
perceivedSeverity major
Alarm Description Failure on the HSI link between the Tcif and the MT120 boards
Applicability TCIF
Impact on System HSI links toward MT120 boards are down.
Impact BSS O&M; Capabilities
Loss No Yes - lost for theO&M actions on thesupervised MT120boards
Degradation No Yes
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4 Class 103: TC_IF Alarms
4.17.1 Corrective Action
[103, 23] HSI_FAILURE
Check the integrity of the HSI connectors and HSI cables
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
Reset TCIF board.
Alarm persists?
no
Reset TCIF board.
Alarm persists?
no
yes
yes
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4 Class 103: TC_IF Alarms
4.18 [103,24] FAN_FAILURE
specificProblems TC_IF [103] FAN_FAILURE [24]
Event Type equipment
probableCause equipmentMalfunction
perceivedSeverity major
Alarm Description TCIF Fan failure. One of the chassiss fan units has failed. The platformis still running.
Applicability TCIF
Impact on System The impacted SBL is set to FLT. There is no other system impact.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
4.18.1 Corrective Action
[103, 24] FAN_FAILURE
Replace the impacted FAN
module.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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4 Class 103: TC_IF Alarms
4.19 [103,28] INTERNAL_CLOCK_INCONSYSTENCY
specificProblems TC_IF [103] INTERNAL_CLOCK_INCONSYSTENCY [28]
Event Type equipment
probableCause timingProblem
perceivedSeverity minor
Alarm Description Internal TCIF clock inconsistencies
Applicability TCIF
Impact on System Impacted SBLs are in FIT.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
4.19.1 Corrective Action
[103, 28] INTERNAL_CLOCK_INCONSYSTENCY
Reset the TCIF board.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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4 Class 103: TC_IF Alarms
4.20 [103,29] POWER_SUPPLY
specificProblems TC_IF [103] POWER_SUPPLY [29]
Event Type environment
probableCause powerProblem
perceivedSeverity major
Alarm Description Power problem
Applicability TCIF
Impact on System One power suply is down.
Impact BSS O&M; Capabilities
Loss No No
Degradation No No
4.20.1 Corrective Action
[103, 29] POWER_SUPPLY
Check the TC rack breaker.
Alarmsolved
ContactSystem Support
Alarm persists?
no
yes
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5 Class 105: TRANSCODER Alarms
5 Class 105: TRANSCODER Alarms
This section defines the BSC alarms for the Class 105: TRANSCODER alarmclass.
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5 Class 105: TRANSCODER Alarms
5.1 [105,000] POWER-SUPPLY
specificProblems TRANSCODER [105] POWER-SUPPLY [000]
Event Type environment
probableCause powerProblem
perceivedSeverity major
Alarm Description One of both power suply is in fault
Applicability TC G2.5
Impact on System If the power supply fails and the OBC is not working on any board, thepower supply alarm may not be sent.
Impact BSS O&M; Capabilities
Loss No No
Degradation – No
5.1.1 Corrective Action
[105, 0] POWER−SUPPLY
Check the TC power breaker.
Alarmsolved
yes
Alarm persists?
no
ContactSystem Support
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5 Class 105: TRANSCODER Alarms
5.2 [105,128] EQUIPMENT-FAULT(2nd or more DSP faulty - looptest)
specificProblems TRANSCODER [105] EQUIPMENT-FAULT(2nd or more DSP faulty -loop test) [128]
Event Type equipment
probableCause InternalDSPproblem
perceivedSeverity major
Alarm Description Internal fault has been detected on
Applicability MT120
Impact on System See Consequences of an SBL State Change.ACH IT Gain of aterrestrial traffic channel to the MSC. The channel can be used fortraffic.ACH FLT/FOS Causes loss of a terrestrial traffic channel to theMSC. The channel will no longer be used for traffic.
Impact BSS O&M; Capabilities
Loss No No
Degradation Yes No
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5 Class 105: TRANSCODER Alarms
5.2.1 Corrective Action
[105, 128] EQUIPMENT−FAULT(2nd or more
DSP faulty − loop test)
Reset corresponding JBMTE board.
Alarmsolved
yes
Alarm persists?
no
ContactSystem Support
Replace corresponding JBMTE board.
yes
Alarm persists?
no
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5 Class 105: TRANSCODER Alarms
5.3 [105,130] MEMORY-FAULT
specificProblems TRANSCODER [105] MEMORY-FAULT [130]
Event Type processingError
probableCause corruptData
perceivedSeverity major
Alarm Description Fault in memory (unsuccessful write to FLASH memory)
Applicability MT120
Impact on System See Consequences of an SBL State Change.ACH IT - Gain of aterrestrial traffic channel to the MSC. The channel can be used fortraffic.ACH FLT/FOS - Causes loss of a terrestrial traffic channel to theMSC. The channel will no longer be used for traffic.
Impact BSS O&M; Capabilities
Loss No No
Degradation Yes No
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5 Class 105: TRANSCODER Alarms
5.3.1 Corrective Action
105,130] MEMORY−FAULT
Analyze alarm number
Solve that alarm(s)BIU
alarm events?
no
yes
Alarmsolved
Reset MT120
Replace MT120
Alarm persists?
Alarm persists?
ContactSystem Support
no
no
yes
On−site
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5 Class 105: TRANSCODER Alarms
5.4 [105,136] FIRST-DSP-FAIL
specificProblems TRANSCODER [105] FIRST-DSP-FAIL [136]
Event Type equipment
probableCause equipmentMalfunction
perceivedSeverity major
Alarm Description For the 1st time, there is a DSP failure. The MT120 works in degradedmode
Applicability MT120
Impact on System See Consequences of an SBL State Change.ACH IT - Gain of aterrestrial traffic channel to the MSC. The channel can be used fortraffic.The DSP chanel recobery procedure is aplied.
Impact BSS O&M; Capabilities
Loss No No
Degradation Yes No
3BK 21265 AAAA PCZZA Ed.02 103 / 110
5 Class 105: TRANSCODER Alarms
5.4.1 Corrective Action
[105,136] FIRST−DSP−FAIL
ContactSystem Support
Alarmsolved
Alarm persists?
no
yes
On−site
Replace MT120
Alarmsolved
yes
Alarm persists?
no
Reset MT120
104 / 110 3BK 21265 AAAA PCZZA Ed.02
5 Class 105: TRANSCODER Alarms
5.5 [105,148] RESET (1st DSP faulty, 2nd or more DSP faulty-HW watchdog- HW failure- more than 3 autoresets in 24hours.)
specificProblems TRANSCODER [105] RESET (1st DSP faulty, 2nd or more DSP faulty-HW watchdog- HW failure- more than 3 autoresets in 24 hours.) [148]
Event Type processingError
probableCause softwareError
perceivedSeverity indeterminate
Alarm Description Equipment reset, A Reset_Restart buffer is available
Applicability MT120
Impact on System See Consequences of an SBL State Change.ACH IT - Gain of aterrestrial traffic channel to the MSC. The channel can be used fortraffic.ACH FLT/FOS - Causes loss of a terrestrial traffic channel to theMSC. The channel will no longer be used for traffic.
Impact BSS O&M; Capabilities
Loss Yes No
Degradation – No
5.5.1 Corrective Action
None - this alarm reports the autonomous load of the BTS_ADAPT only.
3BK 21265 AAAA PCZZA Ed.02 105 / 110
5 Class 105: TRANSCODER Alarms
5.6 [105,210] TRANS-FLT
specificProblems TRANSCODER [105] TRANS-FLT [210]
Event Type communication
probableCause degradedSignal
perceivedSeverity indeterminate
Alarm Description For each PCM event, a counter is increased and when threshold isexceeded, this alarm is generated.The PCM event counter thresholdvalue is exceeded on one ATER interface, which results in thegeneration of this 2 Mbit/s alarm.
Applicability MT120
Impact on System See Consequences of an SBL State Change.ACH IT - Gain of aterrestrial traffic channel to the MSC. The channel can be used fortraffic.ACH FLT/FOS - Causes loss of a terrestrial traffic channel to theMSC. The channel will no longer be used for traffic.
Impact BSS O&M; Capabilities
Loss No No
Degradation – No
106 / 110 3BK 21265 AAAA PCZZA Ed.02
5 Class 105: TRANSCODER Alarms
5.6.1 Corrective Action
[105,210] ATER−TRANS−FLT
Solve thatalarm(s) first
Solve that alarm(s)
ContactSystem Support
PCM/ATER alarm events?
no
yes
Repair/replace Ater interface
Other Ater alarm
events?
no
yes
On−site
Alarm persists?
noyes
Alarmsolved
Alarm persists?
no
yes
Ater interface
operational?
no yes
Solve that alarm(s)Ater
interface alarm events?
no
yes
Local Ater cabling
OK?
no
yes
Trigger remote signal path and transmitter tests on MSC side
3BK 21265 AAAA PCZZA Ed.02 107 / 110
5 Class 105: TRANSCODER Alarms
5.7 [105,211] LOSS-OF-CLK-2M
specificProblems TRANSCODER [105] LOSS-OF-CLK-2M [211]
Event Type equipment
probableCause timingProblem
perceivedSeverity major
Alarm Description Loss of clock 2Mhz. The next clock source is selected if available
Applicability MT120
Impact on System See Consequences of an SBL State Change.ACH IT - Gain of aterrestrial traffic channel to the MSC. The channel can be used fortraffic.ACH FLT/FOS - Causes loss of a terrestrial traffic channel to theMSC. The channel will no longer be used for traffic.
Impact BSS O&M; Capabilities
Loss No No
Degradation – No
108 / 110 3BK 21265 AAAA PCZZA Ed.02
5 Class 105: TRANSCODER Alarms
5.7.1 Corrective Action
[105,211] LOSS−OF−CLOCK−2M
Solve thatalarm(s) first
Solve that alarm(s)
ContactSystem Support
APCM alarm events?
no
yes
Repair/replace Receiver
Link related alarm
events?
no
yes
Alarm persists?
noyes
Alarmsolved
Alarm persists?
no
yes
Receiver operational?
no yes
Solve that alarm(s)Related
receiver alarm events?
no
yes
Local trunk cabling
OK?
no
yes
Trigger remote signal path and transmitter tests on MSC side
3BK 21265 AAAA PCZZA Ed.02 109 / 110
5 Class 105: TRANSCODER Alarms
5.8 [105,216] RESTART (DSP restart OTP restart)
specificProblems TRANSCODER [105] RESTART (DSP restart OTP restart) [216]
Event Type processingError
probableCause softwareError
perceivedSeverity indeterminate
Alarm Description (Equipment Restart,a Reset_Restart buffer is available)
Applicability MT120
Impact on System See Consequences of an SBL State Change.ACH IT - Gain of aterrestrial traffic channel to the MSC. The channel can be used fortraffic.ACH FLT/FOS - Causes loss of a terrestrial traffic channel to theMSC. The channel will no longer be used for traffic.
Impact BSS O&M; Capabilities
Loss Yes for DSP restart No
Degradation – Yes of OTP restart
5.8.1 Corrective Action
None. This alarm reports an autonomous restart.
110 / 110 3BK 21265 AAAA PCZZA Ed.02