Cisco 4221 ISR User Manual

6-50
Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
OL-32185-02
Chapter 6 Install and Upgrade Internal Modules and FRUs
Remove and Replace Cisco 4000 Series ISRs Power Supplies
Figure 6-36 Cisco 4331 ISR Power Supply Module
Remove DC Input Power from Cisco 4331 ISR
Warning Before performing any of the following procedures, ensure that power is removed from the DC
circuit. Statement 1003
Warning Only trained and qualified personnel should be allowed to install, replace, or service
this equipment. Statement 1030
Warning When installing or replacing the unit, the ground connection must always be made first and
disconnected last. Statement 1046
This section describes how to remove a DC input power from Cisco 4331 Series ISR.
To remove a DC input power from Cisco 4331 ISR:
Step 1 Turn off the circuit breaker at the power source.
1 Power supply module 2 Screws
3 Power supply cable connector 4 Power supply module tab
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31 2
4

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)