Cisco 2811 Series User Manual

6
Installing and Upgrading Fans in Cisco 2811 Series Routers
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Installing and Removing the Fans
Removing the System Fans
To remove a system fan, perform the following procedure. To complete this procedure, you may need a
flat-blade screwdriver.
Step 1 Locate the fans to be removed. See Figure 4 for the location of the fans.
Step 2 Disconnect the fan connector from the system board as shown in Figure 5.
Figure 5 Disconnecting the System Fan Connector from the System Board
Step 3
Remove the fan wire from the wire management clip, which is located on the chassis base as shown in
Figure 6.
Figure 6 Removing the Fan Wire from the Wire Management Clip
Step 4 Remove the fan by sliding it upward, and then tilting it toward the chassis wall as shown in Figure 8.
Note If the fan is difficult to grasp when sliding upward, use a flat-blade driver for leverage as shown
in Figure 7.
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Cisco 2811 Series Specifications

General

Form Factor	Rack-mountable
Network Module Slots	1
Advanced Integration Module Slots	1
Connectivity Technology	Wired
Data Link Protocol	Ethernet, Fast Ethernet
Encryption Algorithm	DES, 3DES, AES
VPN Support	Yes
Operating System	Cisco IOS
Expansion Slots	4 x HWIC
Memory	256 MB (max 768 MB)
Flash Memory	64 MB (default), expandable to 128 MB
Power Supply	AC 110/220 V (50/60 Hz)
Remote Management Protocol	SNMP, Telnet
Features	VPN support, QoS, Firewall
Security Features	Firewall, IPSec