Cisco 2851 - Integrated Services Router User Manual page 21

Locating the Fan
Figure 4
Figure 4
1
3
Note
Installing and Removing the Fans
The router fans rest on the chassis base and have a wire that connects to the system board.
Before you remove or install a fan, remove the chassis cover as described in the
Cover" section on page
Caution When you remove or install a fan, always wear an ESD-preventive wrist strap, and ensure that it makes
good contact with your skin. Connect the equipment end of the wrist strap to the metal part of the chassis.
78-17850-01
shows the locations of the fans in a Cisco 2811 series router.
Fan Locations in Cisco 2811 Routers
System fan
Power supply fan
The fan numbers in Figure 4 correllate to IOS show environment command numbers. The arrows
show proper air flow.
2.
2 System fan
Installing and Upgrading Fans in Cisco 2811 Series Routers
Locating the Fan
3
2
1
"Removing the Chassis
5