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1152700• Issue 1 • February 2001 • Section 2 Operations and Maintenance
Page 18 of 23
Table 4-1. Alarm Identifications, continued
ALARM MESSAGE
SEVERITY
IMPACT
| DESCRIPTION |
| SUGGESTED COURSE OF ACTION |
|
|
|
|
|
|
|
|
Shelf
Controller
EIM 1
Removed
EIMSlot1R emoved
Shelf
Controller
EIM 18
Removed
EIMSlot18 Removed
Signal Degraded
Software Downloadi ng Failed
SWDownlo adFailed
Sync
Message
Changed
SyncMessa geChanged
Sync
Reference
Failure
SyncRefere nceFailed
T1 Loopback
DS1Loopba ck
T1 Yellow Alarm
DS1Rai
Informational Alert
Informational Alert
Minor
Informational Alert
Major – currently an informational alert.
Major – currently an informational alert.
Informational Alert
Minor
Installation Information
Installation Information
Could be Service Affecting.
Installation Information
Installation Error
Service Affecting
Service Affecting
Not service affecting
SC EIM in slot one which provides hardwired alarm inputs and outputs, remote ACO activation, and timing reference inputs (BITS), cannot be found .
SC EIM in slot 18 which provides backplane bus termination, Telnet connection to the node, and shelf addressing, has been physically pulled from the backplane.
Input signal strength is degraded. Possibly a fiber problem or transmitter.
NMIC unable to download software successfully to the NE.
SONET sync message (S1 byte) changed.
Timing reference that the network element clocks off of has failed.
T1 Loopback Pseudo Random Pattern. Indicates a loopback condition has been initiated by a user.
DSX1 Alarm: Remote Alarm Indication. Indicates a problem at the CPE transmitter.
Buses are probably not functioning properly because the Bus Terminating EIM (B- TEIM) in slot 18 at the rear of the shelf or the SC in slot 1 has been physically removed from the backplane.
Buses are probably not functioning properly because the Bus Terminating EIM (B- TEIM) in slot 18 at the rear of the shelf or the SC in slot 18 has been physically removed from the backplane.
Check fiber path for damage or bends and check attenuation and transmitter output.
Check FTP connection and NE status.
No suggestions.
Retrieve timing source information and check reference input (BITS,
Check for troubleshooting activity by other users and release loopback if necessary.
Check card and output level of CPE equipment. Replace as needed per local practices.
(continued)
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© 2000, ADC Telecommunications, Inc.