Interpreting LEDs

Interpreting LEDs

The 5536-DM RAS board provides four LEDs above each PRI port:

LED1

LED2

LED3

LED4

Figure 8-1. LED Arrangement

LED functions differ depending on whether the board is configured with a T1/PRI interface, an E1/PRI interface with CRC4, or an E1/PRI interface without CRC.

T1/PRI Interface

On cards with a T1/PRI interface, the LEDs for each port function as follows:

LED

Color

Meaning if the LED is ON...

 

 

 

1

Green

Clock is synchronized.

 

 

 

2

Green

Physical layer is active.

 

 

 

3

Yellow

Your ISDN provider is sending an RAI alarm to the

 

 

board.

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Interphase Corporation