Cisco 4331 ISR User Manual

6-6
Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
OL-32185-02
Chapter 6 Install and Upgrade Internal Modules and FRUs
Locate Internal and External Slots
Figure 6-1 Install the Cover on the Router (Shown Cisco 4451-X ISR )
Replace the Cover on Cisco 4300 ISR
To replace the cover:
Step 1 Read the Safety Warnings, page 6-2 and disconnect the power supply before you replace any module.
Step 2 Confirm the router is turned off and disconnected from the power supply or power supplies. If a
redundant power is used disconnect from the redundant power supply.
Step 3 Place the chassis on a flat surface.
Step 4 Hold the cover at a 45-degree angle and insert the cover tabs into the slots along the front (bezel) edge
of the chassis. See Figure 6-1.
Step 5 Center the cover over the chassis and lower it onto the chassis.
Step 6 Install the four cover screws on the top of the router and the two cover screws at the side of the router.
Locate Internal and External Slots
Cisco 4400 Series ISRs and Cisco 4300 Series ISRs have replaceable internal modules.
Note Cisco 4200 Series ISR do not have a replaceable internal module.
1 Cover screws (3)
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1

Cisco 4331 ISR Specifications

General

Brand	Cisco
Model	4331 ISR
Category	Network Router
Language	English