Installing The Fan Tray; Installing The Dust Filter - Cisco ASR 903 Installation Manual

Installing the Fan Tray

Installing the Fan Tray
The fan tray is a modular unit that provides cooling to the Cisco ASR 903 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 69: Installing the Fan Tray
Step 2
Guide the fan tray into the chassis until it is fully seated.
Caution The fans are exposed on the left side of the fan tray. Keep your fingers, clothing, and jewelry away from the
fans. Always handle the fan tray by the handle.
When installing the cabling to the RSPs, we recommend that you leave a service loop of extra cabling sufficient
Note
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 903 Router.
For information about connecting cables to the fan tray alarm port, see
summary of the LEDs on the fan tray, see
Guidelines.

Installing the Dust Filter

Step 1 Follow the steps for removing the fan tray (if installed) from the chassis. See
page 87.
Step 2 Remove the dummy cover from the fan tray. See the figure in section
Step 3 Slide the dust filter onto the fan tray. See the figure in section
Step 4 Insert the dummy cover on the fan tray to secure the filter within the chassis.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
86
LED Summary. For more information about air flow guidelines, see
Fan Tray (A903-FAN-E), on page
Installing the Cisco ASR 903 Router
Connecting the Fan Tray Alarm
Removing and Replacing the Fan Tray, on
Fan Tray (A903-FAN-E), on page
10.
Port. For a
Air Flow
10.