Verilink AS2000: The Basics (880-502981-001) Product Manual - Manual (Page 70)

Monitoring and Troubleshooting
5-4 Verilink Access System 2000: The Basics
• Call Setup
What To Do
About Alarms
Some alarms clear after the user-configured timeout has expired.
Other alarms require corrective action.
• If an alarm has been cleared, no other action is required.
• If there is a loopback present, unless you are intentionally
testing, remove the loopback. (Only if the loopback is from
your end. If the loop was initiated by your network service
provider, check with their test facility before taking down the
loop.)
• For a Loss of Frame (LOF), you may have a telco or module
problem. To test, do a Repeater Loopback (RLB) to test for LOF.
If there is no LOF indicated by the test, the problem is with the
telco.
• For a Loss of Signal (LOS), check your router cables, power,
and ports.
• For a power-up self-test failure, reseat the module a few times
to see if it will power up and pass the self test. If it does not
pass after repeated self tests, replace the module.
Alarm List Fault conditions can result in critical, major, or minor alarms. In
addition, a fault condition can also result in a Carrier Failure Alarm
(CFA).