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1-8
Integrated Services Adapter and Integrated Services Module Installation and Configuration
OL-3575-01 B0
Chapter1 Overview
LEDs
The following conditions must all be met before the enabled LED goes on:
• The ISM is correctly connected to the backplane and receiving power.
• 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.
Table 1-3 ISM LEDs
LED Label Color State Function
EN Green On Indicates the ISM 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 ISM is operating. As
crypto traffic increases, the nominal level of this LED increases in proportion to the traffic level.
Indicates the ISM is operating.
Indicates the ISM is booting or a packet is being
encrypted or decrypted.
ERROR Amber On Indicates an encryption error has occurred. This
LED is normally off.