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Site Requirements
Catalyst 8540 Chassis Installation Guide
2-8
Site Environment
The chassis operates as a standalone system mounted in a rack in a secure wiring closet.
The environment must be dry, clean, well-ventilated, and air-conditioned. An internal fan
assembly pulls cooling air through the chassis from the front and right side (intake) to the
rear and left side (exhaust). (See Figure 2-3.) The flow of ambient air must be maintained
to ensure normal operation. If the airflow is blocked or restricted, or if the intake air exceeds
104°F, an overtemperature condition can occur. Under extreme conditions, the
environmental monitor can shut down the system to protect the system components.
Figure 2-3 Internal Airflow
To ensure normal operation and avoid unnecessary maintenance, plan your site
configuration and prepare your site before installation. After installation, make sure that the
site maintains an ambient temperature of 32 to 104°F (40°C), and that the area around the
chassis is free of dust.
17106
Fan
assembly