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Cisco 811 and Cisco 813 Routers Hardware Installation Guide
78-10188-03
Chapter 1 Product Overview
Back Panel
Figure 1-4 Cisco 811 Router Back Panel
ETHERNET
TO HUB
TO PC
+5, -24, -71, VDC
1
CONSOLE
Model Cisco 811
ISDN S/T
ISDN U
ISDN U
NOR
RVS
ON
OFF
DSU
33103
TO HUB/TO PC
button
Determines
the Ethernet
device and cable
types used
Console port
Connects to console
for router configuration
using Cisco IOS
commands
DSU ON/OFF
button
Controls access
to built-in DSU
Ethernet port
Connects to
Ethernet network
devices
ISDN S/T port
Connects to
external DSU
Power switch
= On.
= Standby or no
power output
Normal/Reverse
button
Controls signals to
tip and ring wires
of ISDN U interface
ISDN U port
Supports DSU
features in router
Locking power
connector
Connects to
power supply