Cisco ASR 903 User Manual

Procedure
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 8: 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
fans. Always handle the fan tray by the handle.
Caution
When installing the cabling to the RSPs, we recommend that you leave a service loop of extra cabling sufficient
to allow for fan tray removal.
Note
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.
Installing an RSP Module
To install an RSP module in the router chassis, perform the following steps:
Procedure
Step 1
Choose a slot for the module. Make sure that there is enough clearance to accommodate any equipment that will be
connected to the ports on the module. If a blank module filler plate is installed in the slot in which you plan to install the
module, remove the plate by removing its 2 Phillips pan-head screws.
Step 2
Fully open both the ejector levers on the new module, as shown in the figure below.
To prevent ESD damage, handle modules by carrier edges only.Caution
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Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English