Cisco Systems 7500 Series manual Cisco 7505 Fan Tray Assembly

Chapter 1 Cisco 7500 Series Product Overview

Fan Tray and Blower Assembly Overview

Cisco 7505 Fan Tray Assembly

The Cisco 7505 uses a fan tray assembly (see Figure 1-31) consisting of six fans that supply cooling air to the chassis interior. The assembly is accessible from behind the chassis front panel.

Figure 1-31 Fan Tray Assembly (Cisco 7505)

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All six fans should be operating whenever system power is on. The system automatically shuts down if any one or more of the fans is operating outside the specified range. A variable speed feature allows the fans to operate at a slower speed when the internal chassis temperature is within the normal operating range, and at a higher speed if the internal temperature exceeds a specified temperature. (A spare fan tray ships as Product Number MAS/5-FAN=.) For fan tray maintenance information, see the “Removing and Replacing the Cisco 7505 Fan Tray” section on page 5-5.

Cisco 7507 and Cisco 7507-MX Blower Assembly

The Cisco 7507 and Cisco 7507-MX uses a blower assembly (see Figure 1-32) that supplies cooling air to the chassis interior. (A spare blower assembly ships as Product Number MAS-7KFAN=.) For blower assembly maintenance information, see the “Removing and Replacing the Cisco 7507 and Cisco 7507-MX Blower Assembly” section on page 6-15.

	Cisco 7500 Series Installation and Configuration Guide
1-52	OL-5008-03 B0