Avaya VSU 7500, User Manual

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4-4 Troubleshooting
VSU-7500 User Guide
Cooling Fans
The VSU-7500 includes two cooling fans on the rear panel. If one fails, the
second fan will continued to provide sufficient air circulation to the VSU-7500,
until the defective fan can be replaced.
Each of the two cooling fans are hot-swappable and can be replaced without
powering down the VSU-7500.
Fault Indication
If one of the fans fail, an error message is sent to the console port. In addition,
SNMP trap and syslog error messages are sent to the management station. If both
fans fail, the VSU-7500 will shut down to prevent thermal stress to the system’s
electrical components, after notifying the management station.
Contact your customer service representative to obtain a replacement for the
defective fan.
Fan Removal and Replacement
Referring to Figure 4-3, perform the following steps to replace the cooling fan:
1.
Unscrew the two thumbscrews in the lower left and upper right corner of the
defective fan, then pull the fan straight out of the unit.
2.
Making sure that the fan’s power connector is aligned with its socket, slide
the new fan into place and tighten the two thumbscrews to secure it to the
unit.
Figure 4-3 Cooling Fan Removal and Replacement
Fan 1
Fan 2