What to do about alarms, Alarm records, Interpreting alarms – Verilink HDM 2182 (880-502925-001) Product Manual User Manual
Page 73: Critical alarms, What to do about alarms -3, Alarm records -3, Interpreting alarms -3, Critical alarms -3
Troubleshooting
Verilink HDM 2182 User Manual
6-3
What To Do About Alarms
Some alarms will clear after the user-configured timeout has
expired. Other alarms require you to take corrective action.
•
If an alarm has been cleared, no other action is required.
•
If there is a loopback present, unless you are intentially
testing, remove the loopback (Only if the loopback is from
your end. If it is from your telco, you may need to verify the
loopback with them.)
•
If you have 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.
•
If you have a Loss of Signal (LOS), check your router cables,
power, and ports.
•
If you have a Powerup Self-test Fail, reseat the module 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 Records
Every alarm record that appears on your screen is “active” in the
database until you do something about it. You can do the following
with the alarm records:
•
Deactivating alarm records is a database management
function. As long as an alarm is active, you can view it
onscreen, using one of the management options on the Craft
interface or Node Manager. When you deactivate an alarm, it’s
still in the database, but not viewable on screen. Deactivated
alarms can be subsequently archived, printed, or deleted.
•
Archiving an alarm record stores it to a disk file you specify.
•
Printing an alarm record prints a copy of all active and
deactivated alarms.
•
Deleting an alarm record removes it from the database. To
delete an alarm, you must first deactivate it.
Interpreting Alarms
Fault conditions can result in critical, major, or minor alarms. In
addition, a fault condition can also result in a Carrier Failure Alarm
(CFA).
Critical Alarms
A critical alarm indicates that the node or components of the node
have failed. The following alarms are classified as critical: