2 - OPERATION
Installation and User Guide - N56717020101
No reproduction or communication without the written consent of
SAGEM SA
Page A2-13
Defaults and Alarms
The tables below give the default values of severity associated with the failures.
Alarms
Description
Severity
SPI :
SDH Physical Interface
LOS
Loss Of Signal-
Major
TF
Transmit Fail
Major
RST :
Regenerator Section Termination
LOF
Loss Of Frame
Major
MST :
Multiplex section Termination
EBER-B2
Bit Error Rate > 10
-3
on B2 Byte
major
SD-B2
Signal Degrade -B2
minor
MS-AIS
Alarm Indication Signal
Non-alarmed
MS-RDI
Remote Defect Indication
minor
MSP :
Multiplex Section Protection
PAM
Protection Architecture Mismatch
minor
SCM
Selector Control Mismatch
minor
OTM
Operation Type Mismatch
minor
MSA :
Multiplex Section Adaptation
AU-AIS
Administrative Unit - Alarm Indication Signal
Non-alarmed
AU-LOP
Administrative Unit – Loss Of Pointer
major
HPOM :
Higher Order path Overhead Monitor
HO-RDI/G1
High Order Path -Remote Defect Indication
minor
HO-UNEQ
High order Path – Unequipped
Non-alarmed
HPT :
Higher Order Path Termination
HO-SLM
High Order Path -Signal Label Mismatch
Non-alarmed
HO-RDI/G1
High Order Path -Remote Defect Indication
minor
HO-UNEQ
High Order Path –UNEQuipped
Non-alarmed
HPA :
Higher Order Path Adaptation
TU-LOM
Tributary Unit - Loss Of Multiframe
minor
TU-AIS
Tributary Unit – Alarm Indication Signal
Non-alarmed
TU-LOP
Tributary Unit - Loss Of Pointer
minor
LPOM :
Lower Order path Overhead Monitor
SD-B3 (VC3)
Signal Degrade –B3
minor
SD-B2 (VC12)
Signal Degrade –B2
minor
LO-RDI
Low order Path -Remote Defect Indication
minor
LO-UNEQ
Low order Path – Unequipped
Non-alarmed
Table 2-9 : Alarms and severity (1/2)
