1660SM Alarms

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Table 6. General aspect of alarms meaning and relevant maintenance actions

PROBABLE CAUSE

NAME AND/OR ACRONYM

OF DISPLAYED ALARM

MAINTENANCE

Loss of signal (LOS) Check line

Transmitter Signal (TF) Replace unit

Transmitter degraded (TD) Replace unit when possible (laser degrade)

Loss of frame (LOF) Check line (alignment problems due to l ine error)

AIS Check connected equipment

Excessive BER (EBER) Check line (excessive line BER)

Degraded Signal (DS) Check line (line signal degrade)

Loss of Pointer (LOP) Check line

Payload Mismatch (PLM) Configuration error

Far End Received Failure(FERF)

Check farend equipment

Server Signal Failure (SSF)Check all the TU path. Alarm indicates AIS signal received onthe TU

Frequency offset (DRIFT) Check reference and connection between it and the equipment

Loss of timing source (LOSS) Check reference and connection between it and the equipment

Resource Isolation Check connection between NE and Craft Terminal

Communication SubsystemIsolation (CSF) Check Communication configuration (LAPD)

Unequipped (U)

Referred to Signal LabelConfiguration error

Unconfigured EquipmentPresent (UEP)

Unit inserted but not declared

Internal Communication Prob-lem

Reset NE. If persists substitute EQUICO/SYNTH1N/SYNTH4 unitaccording to the NE type.

URU Underlying Resource

UnavailableInsert the board

PM_AS PerformanceMonitoring Alarm Synthesis

Check path / line section interested to the indication.

CPECommunication protocol

error

Check MSP protocol (architecture type, switch fail)

LOMF Loss Of MultiFrame Check payload structure

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MAINTENANCE

PROBABLE CAUSE

NAME AND/OR ACRONYM

OF DISPLAYED ALARM

AUXP Check farend equipment

Remote Node Transmission

error (RNTE)Check farend equipment

Table 7. Boards alarms

NAME AND

ACRONYM

OF DISPLAYED

ALARM

BOARD

ACRONYM MAINTENANCE

Unit missing

(RUM)

A2S1

A21E1

A3E3A3T3

A4ES1

AFOX

ETHATX

ETHMB

GETHAG

HPROT

Insert missing unit

Unit Problem

(RUP)

L41

L41N

L42

L42N

M4E1

M1E3

M1T3

P3E3/T3

P4ES1N

P4S1

Replace unit

Unit type mismatch

(RUTM)

P4S1N

P21E1

P21E1N

P21E1NM4

P63E1

P63E1N

P63E1NM4

S41S41N

SERVICE

Insert right unit (unit inserted into a slot set with another type ofunit)

Unit Problem

(RUP)EQUICO Replace unit

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MAINTENANCEBOARD

ACRONYM

NAME AND

ACRONYM

OF DISPLAYED

ALARM

Unit missing

(RUM) Insert missing unit

Unit Problem

(RUP)Replace unit

Unit type mismatch

(RUTM) PR16


Power Problem

(POP)Replace unit

Pump failure

(PF)Replace unit

Enclosure Door Open

(EDO)

Check that the protection cover in front of the unit has been cor-

rectly placed.

Unit missing


Unit Problem

(RUP)Replace unit

Unit type mismatch

(RUTM)

BST15

BST17


Pump failure

(PF)Replace unit

Enclosure Door Open

(EDO)

Check that the protection cover in front of the unit has been cor-

rectly placed.

Unit missing


Unit Problem

(RUP)Replace unit

Unit type mismatch

(RUTM)

GETHMB Insert right unit (unit inserted into a slot set with another type of

unit)

Internal

communication

problem

(ICP)

Internal dialogue problem in the unit. It indicates a temporary con-

dition which will be restored. If the condition persists it is due to a

unit hardware failure: in this case it will activate the RUP alarm

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MAINTENANCEBOARD

ACRONYM

NAME AND

ACRONYM

OF DISPLAYED

ALARM

Unit missing

(RUM)Insert missing unit

Unit Problem

(RUP)

MATRIXMATRIXN

PREAS1PReplace unit

Unit type mismatch

(RUTM)

PREA1GBE

PREA4ETH

ATM8X8

Insert right unit (unit inserted into a slot set with another type of

unit)

Version Mismatch ATM4X4

SYNTH1Update software version by means of SW download

Internal

communication

problem

(ICP)

SYNTH1N

SYNTH4Internal dialogue problem in the unit. It indicates a temporary con-

dition which will be restored. If the condition persists it is due to a

unit hardware failure: in this case it will activate the RUP alarm

Unit missing

(RUM)S161

S161NInsert missing unit

Unit Problem

(RUP)

S161ND

L161 Replace unit

Unit type mismatch

(RUTM)

161

L161ND

L162


unit)

High Laser

Temperature

(HLT)

L162N

L162ND

I161ND

Replace unit

Cooling Fans Failure

(CFF)Check the fan units and substitute the faulty one

Unit missing

(RUM)

FAN

Insert missing unit

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MAINTENANCEBOARD

ACRONYM

NAME AND

ACRONYM

OF DISPLAYED

ALARM

Unit missing


Unit Problem

(RUP)Replace unit

Unit type mismatch

(RUTM)


unit)

LAN problem

(LAN)

CONGIThis alarm type is present only on 1650SMC or 1660sm.

Check LAN interconnection or substitute CONGI unit

Battery Failure

(BF)

According to the CONGI slot check the station battery.

(Battery A or Battery B)

Fuse Failure

(FF) Substitute the fuse on the CONGI unit.

Unit missing


Unit Problem

(RUP)Replace unit

Unit type mismatch

(RUTM)SERGI


unit)

Battery Failure

(BF)Check the Station Battery connected to the unit

Fuse Failure

(FF)Substitute the fuse on the CONGI unit.

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Table 8. Module alarm

Unconfigured

Equipment Present

(UEP)

ICMI

IS1.1

IL1.1

IL1.2

MM1IS4.1

IL4.1

IL4.2

SMOPT

1000BSX

1000BLX

OHI

OLIN

OHMM

OLMM

Unit inserted but not configured

1660SM Alarms

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