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Installing Network Modules in Cisco 3800 Series Routers
OL-5973-01
Installing Network Modules in
Cisco 3800 Series Routers
This document describes how to install network modules in Cisco 3800 series routers. It contains the
following sections:
• Installing Network Modules, page 51
• Modifying the Width of Network Module Slots, page 53
• Installing and Removing Slot Dividers, page 55
• Installing and Removing Slot Adapters, page 59
• Installing Blank Faceplates, page 60
Installing Network Modules
Network modules install directly into slots in the rear of the router. The Cisco 3845 router supports
online insertion and removal (OIR, or hot swap) of network modules. The Cisco 3825 router does not
support OIR.
Caution The Cisco 3845 router supports OIR with similar modules only. If you remove a network module, along
with any installed WAN or voice interface cards, install another module and card combination exactly
like it.
Caution The Cisco 3825 router does not support OIR of network modules. To avoid damaging the module, you
must turn off electrical power and disconnect network cables before you insert the module into a router
slot.
The Cisco 3825 router provides two slots for network modules. The lower network module slot of this
router, labeled 1 on the rear panel, can hold either of the following sizes of network modules:
• One single-wide network module
• One extended single-wide network module