Chapter 3 Installing the Cisco ASR 903 Router

Installing the Router in a Rack

Note The A903-FAN-E fan tray with filter (A903-FAN-F) cannot be mounted using the mounting screws that

are supported for A903-FAN fan tray. This is not an issue with the FAN tray filter blank panel

(A903-FAN-F-B). We recommend that you use the short screws provided in the following rack mount kits to avoid interference of the air filter during rack mounting and while replacing the fan tray

(A903-FAN) with the fan tray (A903-FAN-E):

19" rack mount kit (A903-RCKMT-19IN)

ETSI rack mount kit (A903-RCKMT-ETSI)

Step 4 Repeat Step 2 and Step 3 for the other bracket.

Installing the Router Chassis in the Rack

To install the router chassis in the equipment rack, perform these steps:

Step 1 Position the chassis in the rack as follows:

If the front of the chassis (front panel) is at the front of the rack, insert the rear of the chassis between the mounting posts.

If the rear of the chassis is at the front of the rack, insert the front of the chassis between the mounting posts.

Step 2 Align the mounting holes in the bracket (and optional cable guide) with the mounting holes in the equipment rack.

Caution Do not use interface module and power supply ejector handles to lift the chassis; using the handles to lift the chassis can deform or damage the handles.

Figure 3-3 Installing the Chassis in a 19-inch EIA Rack

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Cisco Systems ASR 903 manual Installing the Router Chassis in the Rack, Installing the Chassis in a 19-inch EIA Rack