Installing The Fan Tray - Cisco ASR 902U Hardware Installation Manual

Installing the Fan Tray

Installing the Fan Tray
The fan tray is a modular unit that provides cooling to the Cisco ASR 902 Router. Follow these steps to install
the fan tray in the chassis:
Step 1
Orient the fan tray so that the captive screws are on the left side of the fan tray's front panel. The figure below shows
how to orient the fan tray.
Figure 42: Installing the Fan Tray
Step 2 Guide the fan tray into the chassis until it is fully seated.
The fans are exposed on the left side of the fan tray. Keep your fingers, clothing, and jewelry away from the
Caution
fans. Always handle the fan tray by the handle.
Note When installing the cabling to the RSP, we recommend that you leave a service loop of extra cabling sufficient
to allow for fan tray removal.
Step 3 Secure the fan tray to the chassis using the attached captive installation screws. The recommended maximum torque is
5.5 in.-lb (.62 N-m).
This completes the procedure for installing or replacing the fan tray in a Cisco ASR 902 Router.
For information about connecting cables to the fan tray alarm port, see the
For a summary of the LEDs on the fan tray, see the
see the Air Flow
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
74
Guidelinessection.
Connecting the Fan Tray Alarm Port
LED Summary section. For more information about air flow guidelines,
Installing the Cisco ASR 902 Router
section.