Removing The Fan Tray - Cisco ASR-920-24SZ-IM Hardware Installation Manual

Installing the Router
This completes the procedure for installing or replacing the fan tray in a Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M,
ASR-920-24TZ-M Router.
For more information about air flow guidelines, see the Air Flow Guidelines section.

Removing the Fan Tray

The fan tray supports online insertion and removal (OIR). There is no need to power down the Cisco ASR
920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router to remove or replace the fan tray. However, the
router will shut down if the fan tray is removed from the chassis for more than five minutes.
The router can stay active for up to 5 minutes if the temperature is below the ambient limit. However, in
Caution
the event of an overtemperature alarm, the router can shut down in less than 5 minutes. In the event of a
critical temperature alarm, the router shuts down immediately.
To avoid erroneous failure messages, allow at least 2 minutes for the system to reinitialize after the fan
Caution
tray has been removed or replaced.
Follow these steps to remove and replace the fan tray on the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M,
ASR-920-24TZ-M Router:
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation
Removing the Fan Tray
Guide
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