Specifications

1-42
Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 1 Alarm Troubleshooting
Procedure: Clear the FORCED-REQ Alarm on an OC-N Card
Step 1 Click the Maintenance tab.
Step 2 Click the Protection tab for a card or span switch.
Step 3 At Operation, click the drop-down arrow.
Step 4 Choose Clear and click Apply.
1.3.59 FRNGSYNC
• Major, Service affecting
The reporting ONS 15454 is in free run synchronization mode. External timing sources have been
disabled and the node is using its internal clock, or the ONS 15454 has lost its designated BITS timing
source.
Procedure: Clear the FRNGSYNC Alarm
Step 1 If the ONS 15454 is configured to operate from its own internal clock, disregard this alarm.
Step 2 If the ONS 15454 is configured to operate off an external timing source, verify that the BITS timing
source is valid. Common problems with a BITS timing source include reversed wiring and bad timing
cards.
Step 3 Find and troubleshoot alarms related to the failures of the primary and secondary reference sources, such
as SYNCPRI and SYNCSEC.
1.3.60 FSTSYNC
• Minor, Non-service affecting
A Fast Start Synchronization mode alarm raises when the ONS 15454 is choosing a new timing
reference. The previous timing reference has failed. This alarm disappears after approximately 30
seconds.
Note This is an informational alarm.
1.3.61 HITEMP
• Minor, Non-service affecting
The temperature of the ONS 15454 is above 50 degrees Celsius (122 degrees Fahrenheit).