Cisco CTX2500 User Manual

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Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
78-18663-01
Chapter 2 Alarm Troubleshooting
Alarm Procedures
2.7.227 TX-AIS
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
SDH Logical Objects: E1
The Transmit (TX) Direction AIS condition is raised by the ONS 15310-MA SDH backplane when it
receives a far-end E1 LOS.
Clear the TX-AIS Condition
Step 1 Determine whether there are alarms on the downstream nodes and equipment, especially the “LOS
(STM)” alarm on page 2-98, 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/cisco/web/support/index.html for more information or call Cisco TAC (1 800
553-2447).
2.7.228 TX-LOF
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
SDH Logical Objects: E1
The Transmit Direction LOF condition is transmitted by the ONS 15310-MA SDH backplane when it
receives a E1 TX-LOF.
This alarm is raised only at the transmit (egress) side.
Clear the TX-LOF Condition
Step 1 Complete the “Clear the LOF (E1) Alarm” procedure on page 2-86.
If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC (1 800
553-2447).
2.7.229 TX-RAI
Default Severity: Not Alarmed (NA)
SDH Logical Objects: E1, DS3
The Transmit Direction RAI condition is transmitted by the backplane when it receives a 15310-MA
SDH CTX, E1-21/DS3-E3-3, or E1-63/DS3-E3-3 E1 TX-AIS. This alarm is raised only at the transmit
side, but RAI is raised at both ends.

Cisco CTX2500 Specifications

General

Brand	Cisco
Model	CTX2500
Category	Network Card
Language	English