Cisco 2811 ROUTER 2FE 1NME 4HWIC 2PVDM 2AIM IP BASE WITH A/C POWER SUPPLY Specification Guide

All empty chassis slots for network modules must be covered with blank panels. Blank panels are 
required to ensure proper cooling airflow and to prevent electromagnetic interference. 

 shows a 

typical blank panel. 

The network module hardware kit for Cisco 2800 series routers contains two blank panels. Each blank 
panel covers one single-wide network module slot.

Install blank panels over empty network module slots as follows:

Single-wide slot—Attach a blank panel.

Extended single-wide slot—Install an adapter/filler panel as described in the 

 section; then attach a blank panel.

The following documentation is related to your product. This documentation was not shipped with your 
product, but you can access it online at Cisco.com. 

121064