Nortel Networks 114200-E User Manual

Operating the ARN

114200-E Rev 00

3-9

 

After connecting the ARN to the network, you can ensure a successful installation 
by checking the diagnostic LEDs on the front panel of the base module (refer to 

 on 

When you power on the ARN, the following sequence of front panel LED activity 
should occur:

•

All base module LEDs light momentarily; this tests that the LEDs are 
operational.

•

The Run, Boot, and Fail LEDs count through a short, initial startup sequence.

•

The Pwr (power) LED lights and remains on.

•

The Run LED begins flashing and continues to flash until the ARN completes 
all diagnostic tests.

•

As the diagnostic procedure tests each module, the LED representing that 
module flashes slowly. If the module passes its diagnostic test, the LED 
remains on. If the module fails its diagnostic test, the Fail LED remains on 
and the module LED flashes rapidly.

•

After completing the diagnostic testing procedure, the boot process begins. 
The Run and Boot LEDs indicate the boot status as shown in 

.

TX
(Transmit)

Lights when the V.34 modem

 

interface transmits data over the 

network.

RX
(Receive)

Lights when the V.34 modem interface receives data from the 
network.

RLSD
(Received Line 
Signal Detection)

Lights when the modem activates.

DTR
(Data Terminal Ready)

Lights when the V.34 modem interface is ready to transmit 
data.