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Chapter 6 Alarms and Events
LRM Alarms and Events
LRM Alarms and Events
There are two Line Re-timing Modules available for the SSU-2000:
Quad E1 LRM
Dual/Quad DS1 LRM
This section describes the alarms and events for each of the available LRMs.
Quad E1 LRM
Table 6-18
lists the alarms and events for the Quad E1 Line Re-timing Module, and
includes the typical response for each alarm or event, it's event number, and a
description or a suggested corrective action. The SNMP MIB trap is listed in the
Alarm/Event/Trap Description column.
E1 Line Re-timing Module alarms.
Table 6-18. E1 LRM Alarm and Event Messages
Alarm/
Typical Alarm/Event/Trap
Event/
Response
Trap ID
000
LOS, Fault
001
AIS, Fault
002
LOF, Fault
003
BPV, Fault
004
SLIP, Fault
005
LOS, Side2, Fault
010
REF PLL, Fault
011
CT/A Fuse, Fault
012
CT/A, Fault
129
Install, E1 LRM Module
130
Remove, E1 LRM Module
131
Enable, E1 LRM Module,
COML
132
Disable, E1 LRM Module,
COML
133
Restart, in 5 seconds, COML
145
CT/A, Not Installed
316 SSU-2000 Technical Reference
Table 6-19
Corrective Action
Verify signal is connected. To extinguish alarm, disable port.
Verify input signal is good. Port can be disabled.
Loss of frame
Verify port ZS is on. Verify signal is good
Accumulated slip value exceeded threshold setting
Verify signal on side 2 is connected. Can be cleared by disabling
port.
Verify clock reference source is good. Reference PLL is unlocked
Verify CT/A fuse is good
CT/A present/not present, Mismatch Dual/Quad
Module Installed
Module Removed
Module Enabled
Module Disabled
User request for a module to reboot
Assembly not installed
lists the default parameters for the
Description/
12713020-003-2 Revision F.01 – January 2007
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