2-57
Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 2 Alarm Troubleshooting
2.6.61 FAN-FAIL
Step 2
If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
for more information or call Cisco TAC (1 800 553-2447).
2.6.61 FAN-FAIL
Default Severity: Critical (CR), Service-Affecting (SA)
Logical Object: FAN
The Fan Failure alarm occurs when two or more fans (out of a total of six) have failed. The
ONS 15600 SDH has no standby fan. All fans should be active. The FAN-FAIL alarm can be
accompanied by the
“MFGMEM (FAN)” alarm on page 2-96
against the fan. This alarm can also be
raised in conjunction with a
Clear the FAN-FAIL Alarm
Step 1
If the
“MFGMEM (FAN)” alarm on page 2-96
is also reported against the fan, complete the
MFGMEM (FAN) Alarm” procedure on page 2-96
Step 2
If the alarm does not clear, check the condition of the air filter to see if it needs cleaning or replacement
using the procedure located in the “Maintain the Node” chapter in the
Cisco ONS 15600 SDH Procedure
Guide
.
Caution
Always use the supplied electrostatic discharge wristband when working with a powered
ONS 15600 SDH. Plug the wristband cable into the ESD jack located on the lower-right edge of the shelf
assembly.
Step 3
If the alarm does not clear and if the filter is clean, remove the reporting fan trays from the
ONS 15600 SDH.
Step 4
Reinsert the fan trays, making sure you can hear the fans start operating.
Fans should run immediately when correctly inserted.
Step 5
If the alarm does not clear or if the fans do not run, replace the fan trays using the procedure located in
the “Maintain the Node” chapter in the
Cisco ONS 15600 SDH Procedure Guide
.
Step 6
If the alarm does not clear or if the replacement fan trays do not operate correctly, log into the Technical
Support Website at http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800
553-2447) to report a Service-Affecting (SA) problem.
2.6.62 FAN-FAIL-PARTIAL
Default Severity: Major (MJ), Non-Service-Affecting (NSA)
Logical Object: FAN
The Partial Fan Failure alarm occurs when one of the six fans in the shelf fails.
Summary of Contents for Cisco ONS 15600 SDH
Page 18: ...Contents xviii Cisco ONS 15600 SDH Troubleshooting Guide R8 0 July 2010 ...
Page 20: ...Figures xx Cisco ONS 15600 SDH Troubleshooting Guide R8 0 July 2010 ...
Page 30: ...xxx Cisco ONS 15600 SDH Troubleshooting Guide R8 0 July 2010 About this Guide ...
Page 306: ...4 50 Cisco ONS 15600 SDH Troubleshooting Guide R8 0 July 2010 Chapter 4 Error Messages ...
Page 318: ...Index IN 12 Cisco ONS 15600 SDH Troubleshooting Guide R8 0 July 2010 ...