Interpreting Adapter LEDs

The following table describes the adapter status when the sequence of LEDs appears as follows:

LED1

LED2

LED3

LED4

Meaning

 

 

 

 

 

On

On

Off

Off

Adapter is operational.

 

 

 

 

 

On

Off

On

On

Your E1/PRI line does not support

 

 

 

 

CRC4 functionality. Deselect the CRC4

 

 

 

 

option. (See Setting Up ISDN PRI Port

 

 

 

 

Properties on page 56.)

 

 

 

 

 

On

Off

On

Off

Remote Alarm Indication (RAI). Your

 

 

 

 

ISDN provider has synchronization

 

 

 

 

problems and is reporting this problem

 

 

 

 

to you.

 

 

 

 

 

On

Off

Off

On

Your E1/PRI line does not support

 

 

 

 

CRC4 functionality. Deselect the CRC4

 

 

 

 

option. (See Setting Up ISDN PRI Port

 

 

 

 

Properties on page 56.)

 

 

 

 

 

Off

Off

Off

Off

No electrical signal is on the E1/PRI

 

 

 

 

line. Make sure your cable is plugged in

 

 

 

 

correctly.

 

 

 

 

 

France

In France, the adapter LEDs for each port function are as follows:

LED

Color

Meaning when the light is ON...

 

 

 

1

Green

Clock is synchronized.

 

 

 

2

Green

Physical layer is active.

 

 

 

3

Yellow

Your ISDN provider is currently sending an RAI alarm

 

 

to the adapter.

 

 

 

4

Red

No meaning.

 

 

 

70

Interphase Corporation