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 5-41 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.
Step 1 Turn off the circuit breaker at the power source.
Step 2 Ensure that the power switch is in the standby position.
1 Power supply module 2 Screws
3 Power supply cable connector 4 Power supply module tab
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31 2
4

Cisco 4000 Series Specifications

General

Brand	Cisco
Model	4000 Series
Category	Network Router
Language	English