Cisco Systems Cisco 12008 manual Temperature and Humidity Guidelines

Site Requirements Guidelines

Figure 2-4 Internal Air Flow of the Cisco—Side View

Front

Air filter assembly

Ambient air

Top
Card cage	fans
Power supply fans
Bottom

Exhaust air

Upper Rear card cage

Lower	H7683
card cage

Temperature and Humidity Guidelines

For the operating and nonoperating environmental specifications for the Cisco 12008, refer to Table 1-11 in Chapter 1. The router operates within the ranges specified in this table; however, a temperature that approaches a minimum or maximum level indicates a potential problem. You can maintain normal system operations by anticipating and correcting environmental anomalies before they approach a critical state.

The environmental monitors built into the Cisco 12008 protect system components from potential damage from overvoltage and overtemperature conditions. To ensure normal operations and avoid unnecessary maintenance, plan and prepare your site properly before installing the router.

Preparing for Installation 2-13