Cisco ASR 9000 Series Manual page 27

Preparing for Installation
4-Post Enclosed Rack with Perforated Sides
Item c in
with perforated sides and two mounting posts in the front.
Do not install the Cisco ASR 9000 Series Router in any type of fully enclosed rack that does not have the
Caution
required perforated sides or doors; the router requires an unobstructed flow of cooling air to maintain
acceptable operating temperatures for its internal components. Installing the router in any type of fully
enclosed rack without proper perforation could disrupt the air-flow, trap heat next to the chassis, and cause
an overtemperature condition inside the router.
Air Flow Guidelines for Enclosed Rack Installation
Follow these guidelines when installing the Cisco ASR 9000 Series Routers in a 4-post enclosed rack.
Figure 14: Telco-Type Equipment Racks, on page 20
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
Site Requirement Guidelines
shows a free-standing 4-post enclosed rack
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