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
Remove and Replace Cisco 4000 Series ISRs Power Supplies
Figure 6-33 Stripped DC Input Power Source Wire
Warning An exposed wire lead from a DC input power source can conduct harmful levels of electricity. Be
sure that no exposed portion of the DC input power source wire extends from the terminal block.
Statement 122
Step 4 Identify the positive and negative feed positions for the terminal block connection. The wiring sequence
is:
1. Positive (+) lead wire (right)
2. Negative (–) lead wire (left)
Step 5 Remove the router bezel. See Figure 6-34. The bezel is secured with snap latches. To remove the bezel,
hold the top and bottom and pull the bezel.
Figure 6-34 Remove the Bezel
Step 6 Insert the wires through the holes in the bezel. Replace the bezel.
1 0.39 inch (10 mm) is the recommended wire-strip length for the terminal block.
57019
1
1 Bezel 2 DC power supplies
391892
1
2
2

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)