Cisco 4000 Series User Manual

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Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
OL-32185-02
Chapter 5 Install and Upgrade Internal Modules and FRUs
Remove and Replace Cisco 4000 Series ISRs Power Supplies
Figure 5-37 Remove DC Power Supply
Install DC Input Power on Cisco 4431 ISR
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
This section describes how to install the DC power supply input power leads to the Cisco 4431 Router
DC input power supply.
• The color coding of the DC input power supply leads depend on the color coding of the DC power
source at your site. Ensure that the lead color coding you choose for the DC input power supply
matches the lead color coding used at the DC power source. Verify that the power source is
connected to the negative (–) terminal and to the positive (+) terminal on the power supply.
• Ensure that the chassis ground is connected on the chassis before you begin installing the DC power
supply. Follow the steps provided in the “Chassis Grounding” section on page 3-19.
Wire the DC Input Power Source
The Cisco 4431 ISR DC power supply has a terminal block that is installed into the power supply
terminal block header.
To wire the DC input power source:
Step 1 If you have redundant power supplies, ensure that the power switch is in the standby position.
1 Retaining latch
1
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Cisco 4000 Series Specifications

General

Brand	Cisco
Model	4000 Series
Category	Network Router
Language	English