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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.424 TX-AIS
Step 5 If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
for more information or call Cisco TAC 1 800 553-2447 in order to report a Service-Affecting (SA)
problem.
2.7.424 TX-AIS
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
SONET Logical Objects: DS1, DS3, E1
The (TX) Transmit Direction AIS condition is raised by the ONS 15454 backplane when it receives a
far-end DS-1 LOS.
Clear the TX-AIS Condition
Step 1 Determine whether there are alarms on the downstream nodes and equipment, especially the “LOS
(OCN)” alarm on page 2-164, or OOS ports.
Step 2 Clear the downstream alarms using the applicable procedures in this chapter.
Step 3 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call Cisco TAC 1 800 553-2447.
2.7.425 TX-LOF
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
SONET Logical Objects: DS1, E1
The Transmit Direction LOF condition is transmitted by the backplane when it receives a DS-1 TX-LOF.
This alarm is raised only at the transmit (egress) side.
Clear the TX-LOF Condition
Step 1 Complete the “Clear the LOF (DS1) Alarm” procedure on page 2-148.
Step 2 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call Cisco TAC 1 800 553-2447.
2.7.426 TX-RAI
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: DS1, DS3, E1
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