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Cisco 7100 Series VPN Router Installation and Configuration Guide
78-6341-03
Chapter 1 Overview
Field-Replaceable Units
•
The system bus recognizes the ISM.
If either of these conditions is not met, or if the router initialization fails for other reasons, the enabled
LED does not go on.
Caution
To ensure adequate airflow across the router components, an ISM or a blank service module must be
installed in slot 5. The product number for the blank service module is SM-BLANK=.
ISA
The Integrated Service Adapter (ISA) is a service adapter that resides in slot 3 in Cisco 7120 series
routers, and slot 4 in the Cisco 7140 series routers. The ISA has three LEDs, as shown in
Figure 1-28
.
Table 1-10
lists the colors and functions of the ISA LEDs.
Figure 1-28 ISA Front Panel LEDs (SA-ISA shown)
The following conditions must all be met before the enabled LED goes on:
•
The ISA is correctly connected to the backplane and receiving power.
•
The system bus recognizes the ISA.
If either of these conditions is not met, or if the router initialization fails, the enabled LED does not go
on.
Table 1-10
ISA LEDs
LED Label
Color
State
Function
ENABLE
Green
On
Indicates the ISA is powered up and enabled for
operation.
BOOT
Amber
Pulses
1
On
1.
After successfully booting, the boot LED pulses in a “heartbeat” pattern to indicate that the ISA is operating. As
crypto traffic increases, the nominal level of this LED increases in proportion to the traffic level.
Indicates the ISA is operating.
Indicates the ISA is booting or a packet is being
encrypted or decrypted.
ERROR
Amber
On
Indicates an encryption error has occurred.
This LED is normally off.
ENCRYPT/COMP
SA-ISA
ENABLE
BOO
T
ERR
OR
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