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
Remove DC Input Power from Cisco 4431 ISR
This section describes how to remove a DC power supply from Cisco 4431 Series ISR.
Note The Cisco 4431 ISR has redundant power supplies that can be hot-swapped.
To remove a DC power supply from Cisco 4431 ISR:
Step 1 If you have redundant power supplies, ensure that the power switch is in the Standby position.
Note It is not required to place the power switch in the Standby position if you want to hot-swap a
single power supply.
Step 2 For Cisco 4431 ISR, unscrew the two terminal block wire connectors (negative and positive) on the unit.
See. See Figure 6-35. Cisco 4451 ISR and Cisco 4351 ISR: For Cisco 4451 ISR and Cisco 4351, unscrew
the three terminal block wire connectors (ground, negative and positive) on the unit. For Cisco 4331 ISR,
remove the power supply cable connector (See Figure 6-36) and remove the two screws that secure the
power supply module to the chassis.
Step 3 Remove the plastic bezel from the router. You can skip this step for Cisco 4451 ISR and Cisco 4351 ISR.
Step 4 Press the retaining latch towards the pull handle, grasp the handle with one hand, and pull the power
supply out of the slot while supporting the weight of the power supply with the other hand. See
Figure 6-32.
Figure 6-32 Remove DC Power Supply
1 Retaining latch
1
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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)