Chapter 7: Troubleshooting

In their operational state, the LEDs must be as follows:

LED

Color State must be...

1 Green On

2 Green On

3Yellow Off

4Red Off

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

Off

Your E1/PRI line requires CRC4. Select

 

 

 

 

the CRC4 option. (See Setting Up ISDN

 

 

 

 

PRI Port Properties on page 56.)

 

 

 

 

 

On

Off

Off

Off

Your E1/PRI line requires CRC4. Select

 

 

 

 

the CRC4 option. (See Setting Up ISDN

 

 

 

 

PRI Port Properties on page 56.)

 

 

 

 

 

Off

Off

Off

Off

Either no electrical signal is on the

 

 

 

 

E1/PRI line, or your ISDN provider is

 

 

 

 

currently sending an AIS alarm to the

 

 

 

 

adapter.

 

 

 

 

Make sure your cable is plugged in

 

 

 

 

correctly.

 

 

 

 

 

iSPAN PRI PCI ISDN Users Guide

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