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Cisco ONS 15327 Troubleshooting Guide, R3.4
March 2004
Chapter 2 Alarm Troubleshooting
Alarm Procedures
The FSTSYNC alarm disappears after approximately 30 seconds. If the alarm does not clear, log onto
http://www.cisco.com/tac for more information or call TAC (1-800-553-2447).
Note FSTSYNC is an informational alarm. The alarm does not require troubleshooting.
2.6.92 FULLPASSTHR-BI
• Not Alarmed (NA), Non-Service Affecting (NSA)
The Bidirectional Full Pass-Through Active (FULLPASSTHR-BI) condition occurs on a nonswitching
node in a BLSR when the protect channels on the node are active and carrying traffic, and there is a
change in the receive K byte from No Request.
Procedure: Clear the FULLPASSTHR-BI Condition
Step 1 Complete the “Clear a BLSR Span Lock Out” procedure on page 2-127.
Step 2 If the condition does not clear, log onto http://www.cisco.com/tac for more information or call TAC
(1-800-553-2447).
2.6.93 HITEMP
• Critical (CR), Service Affecting (SA) for NE
• Minor (MN), Non-Service Affecting (NSA) for EQPT
The High Temperature (HITEMP) alarm occurs when the temperature of the ONS 15327 is above
122° F (50° C).
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15327.
Plug the wristband cable into the ESD jack located between the top high-speed and XTC slots.
Procedure: Clear the HITEMP Alarm
Step 1 Verify that the environmental temperature of the room is not abnormally high.
Step 2 If the room temperature is not abnormal, physically ensure that nothing prevents the fan-tray assembly
from passing air through the ONS 15327.
Step 3 If airflow is not blocked, physically ensure that blank faceplates fill the ONS 15327 empty slots. Blank
faceplates help airflow.
Step 4 If faceplates fill the empty slots, verify whether the air filter needs replacement. Refer to “Inspect and
Maintain the Air Filter” procedure in the Cisco ONS 15327 Procedure Guide.
Step 5 If the filter is clean, complete the “Remove and Reinsert Fan-Tray Assembly” procedure on page 2-130.
