Cisco 4221 ISR User Manual

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Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
OL-32185-02
Chapter 6 Install and Upgrade Internal Modules and FRUs
Replace a Fan Tray
Step 2 Completely loosen the three captive fan tray screws.
Step 3 Pull the fan tray out.
Step 4 Insert the replacement fan tray and tighten the three captive screws.
Step 5 Replace the bezel.
Figure 6-43 Cisco 4351 ISR4 Fan Tray
Figure 6-44 Cisco 4431 ISR Fan Tray
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1
1
2
1
1 Captive screws 2 Fan tray
1 Captive screws 2 Fan tray
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Cisco 4221 ISR Specifications

General

Form Factor	Rack-mountable
WAN Ports	2
LAN Ports	2
RAM	4 GB
Flash Memory	4 GB
Product Type	Router
Total Number of Ports	4
Number of Network (RJ-45) Ports	4
Number of Total Expansion Slots	3
Expansion Slot Type	NIM, ISC
Number of NIM Slots	2
Number of ISC Slots	1
Manageable	Yes
Power Supply	Internal
Redundant Power Supply	No
Authentication Method	RADIUS, TACACS+
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Operating Temperature	32°F to 104°F (0°C to 40°C)
Height	1.75 in
Encryption Algorithm	AES, 3DES
Dimensions (W x D x H)	1.75 x 13.5 x 1.73 inches
Operating Humidity	5 to 95% (noncondensing)