Equipment Rack-Mounting Guidelines; General Equipment Rack Ventilation Considerations - Cisco 7500 Series Configuration Manual

Chapter 2 Preparing for Installation
Figure 2-9
System blower
Card cage
Intake air
Power supplies
The power supplies have their own fans with airflow that is independent of the chassis airflow. Ensure
that there is minimum front and back clearance of 6 inches (15.24 cm).

Equipment Rack-Mounting Guidelines

This section provides the equipment rack-mounting guidelines that must be observed before installing a
Cisco 7500 series router in an equipment rack.

General Equipment Rack Ventilation Considerations

If you plan to install the router in an equipment rack, you can avoid overtemperature conditions by
observing the following precautions:
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OL-5008-03 B0
Airflow Through the Cisco 7513, Cisco 7513-MX, and Cisco 7576
There must be at least 2 inches (5.08 cm) of clearance between each side of the chassis and the side
(or inner wall) of an enclosed rack.
Enclosed racks must have adequate ventilation or an exhaust fan; use an open rack whenever
possible.
A ventilation system that is too powerful in a closed rack can also prevent cooling by creating
negative pressure around the chassis and redirecting the air away from the inlet vents. If necessary,
operate the chassis with the rack open.
The correct use of baffles in an enclosed rack can help to ensure that cool air reaches the chassis.

Equipment Rack-Mounting Guidelines

Exhaust air
Cisco 7500 Series Installation and Configuration Guide
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