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

Connect each WAN, LAN, and voice cable to the appropriate connector on the chassis or on a network 
module or interface card.

Position the cables carefully, so that they do not put strain on the connectors. 

Organize cables in bundles so that cables do not intertwine.

Inspect the cables to make sure that the routing and bend radiuses are satisfactory. Reposition cables, 
if necessary.

Install cable ties in accordance with site requirements.

For cable pinouts, refer to the 

 document.

Your router has asynchronous serial console and auxiliary ports for system management. These ports 
provide administrative access to your router either locally (with a console terminal or PC) or remotely 
(with a modem).

Cisco provides the following cables for connecting your router to a console terminal, PC, or modem:

One console cable (RJ-45-to-DB-9, blue)

One modem cable (RJ-45-to-DB-25, black) (Cisco 2811, Cisco 2821, and Cisco 2851 only)

One DB-9-to-DB-25 adapter (Cisco 2801 only)

This section describes how to connect a console terminal or PC to the console port and how to connect 
a modem to the auxiliary port. 

 summarizes the system management connections.

For information about cable pinouts, refer to the 

document. 

Console

Light blue PC or ASCII terminal communication port 

(usually labeled COM) 

RJ-45-to-DB-9 console cable

Auxiliary

Black

Modem for remote access

RJ-45-to-DB-25 modem cable or 
RJ-45-to-DB-9 console cable with a 
DB-9-to-DB25 adapter