Cisco ASR 9000 Series Installation Manual page 160

Installing Optional Air Baffles on the Cisco ASR 9904 Router
• Eight 8-32 screws for securing the side baffles to the air deflectors
Air baffles allow for front-to-back air flow through the chassis and help isolate exhaust air from the intake
air. For air baffle dimensions, see
on page 151
If you ordered the air baffle accessory kit, follow these steps to install it:
Procedure
Step 1 Attach the adapter plates
Cisco ASR 9904 Router Chassis , on page
screws (we recommend a minimum of ten per side). These screws can vary in size and type depending on the
rack that you use. Torque the screws to the weight specified for your particular rack.
Figure 153: Attaching the Adapter Plates to the Left and Right Rack Rails on the Cisco ASR 9904 Router Chassis
Step 2 Loosely attach the left and right side air baffles to the adapter plate
the Cisco ASR 9904 Router Chassis , on page
screws. To ensure the correct orientation, "Left Front" and "Right Front" are stamped on each side of the
baffle.
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
146
Figure 160: Cisco ASR 9904 Router Air Baffle Dimensions—Top View,
and Figure 161: Cisco ASR 9904 Router Air Baffle Dimensions—Front View, on page
(Figure 153: Attaching the Adapter Plates to the Left and Right Rack Rails on the
146) to the left and right rack rails using customer-supplied rack
(Figure 154: Installing the Air Baffles on
147) with 12-24 screws (four per side). Do not tighten these
Unpacking and Installing the Chassis
152.