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

If your router uses the Cisco Redundant Power System (RPS), refer to the Cisco Redundant Power 
System Hardware Installation Guide for instructions about the power connections. You can access this 
document at:

http://www.cisco.com/univercd/cc/td/doc/product/access/rpsbk/rpshim/index.htm.

Before connecting the RPS to the router, make sure that either the RPS is in standby mode or the RPS 
AC power is disconnected. Connecting the RPS to AC power automatically places the RPS in active 
mode.

The Cisco 2801 router does not support an RPS.

This section describes how to connect the WAN, LAN, and voice interface cables. It covers the following 
topics:

One or two Ethernet cables are typically provided with the router. Additional cables and transceivers can 
be ordered from Cisco. For ordering information, contact customer service. For cable pinouts, refer to 
the

 document.

Do not work on the system or connect or disconnect cables during periods of lightning activity. 
Statement 1001

To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network 
voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some 
LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables. Statement 1021

Hazardous network voltages are present in WAN ports regardless of whether power to the unit is OFF 
or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, 
detach the end away from the unit first. Statement 1026