Cisco 7200 VXR router User Manual page 77

Figure 2-2 Internal Air Flow—Top View
Exhaust
air
The left and right sides of the chassis must remain unobstructed to ensure adequate air flow
and prevent overheating inside the chassis; we recommend at least 3 in. (7.62 cm) of
clearance.
Follow these general precautions when planning your equipment locations and
connections:
Power supply end
Port adapter end
Site Requirement Guidelines
Inlet
airflow
Preparing for Installation 2-9