Cisco 3825 Series User Manual

15
Installing and Upgrading Fans in the Cisco 3825 Series Routers
78-18642-01B0
Upgrading the Cisco 3825 Fan Unit
Step 2 Remove the two screws that hold the top of the fan unit to the router. (See Figure 4.)
Figure 4 Removing Screws Holding the Top of the Fan Unit
Step 3
Remove the four screws that hold the fan unit to the side of the chassis. (See Figure 5.)
Figure 5 Removing Fan Mounting Screws from the Side of the Chassis
1 Screws holding the top of the fan unit to the router
280477
1
1 Fan mounting screws on the side of the
chassis
1
280478

Cisco 3825 Series Specifications

General

Form Factor	Rack-mountable
Connectivity Technology	Wired
Memory	256 MB (default), expandable to 1 GB
Flash Memory	64 MB (installed) / 256 MB (max)
Power Supply	Internal power supply
Data Link Protocol	Ethernet, Fast Ethernet
Network / Transport Protocol	IPSec
Remote Management Protocol	SNMP, Telnet
Encryption Algorithm	DES, 3DES, AES
Power Device	Internal power supply
Operating Temperature	32 °F to 104 °F (0 °C to 40 °C)
Operating Humidity	10 - 85% (non-condensing)