
1-52
Cisco 7500 Series Installation and Configuration Guide
OL-5008-03 B0
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)
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
.
H9714