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Cisco 7100 Series VPN Router Installation and Configuration Guide
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Chapter 1 Overview
Cisco 7120 Series Overview
The Cisco 7120-AT3, Cisco 7120-AE3, and Cisco 7120-SMI3 WAN ports have one enabled LED and
three status LEDs. The LEDs are in the same location and labeled the same on each model. After system
initialization, the enabled LED goes on to indicate that the port has been enabled for operation. If the
initialization fails for any reason, the enabled LED will not go on. The LEDs are shown in
Figure 1-14
and described in
Table 1-4
.
Figure 1-14 Cisco 7120-AT3 WAN Port LEDs
Table 1-4
Cisco 7120-AT3, Cisco 7120-AE3, and Cisco 7120-SMI3 LED Descriptions
LED Label
Color
State
Function
EN
Green
On
Indicates the port is ready.
RX CEL
Green
On
Indicates the port has received an ATM cell.
RX CAR
Green
On
Indicates the port has detected a carrier on the receiver cable. For a
fiber-optic interface, this means that light is detected, and a valid
frame is detected.
RX ALM
Red
On
Indicates the router detected an alarm condition.
RX
5
TX
E3
RX
EN
CEL CAR ALM
I
18487
RX
EN
CEL CAR ALM
LEDs
