Nortel Networks Passport ARN Routers - Manual (Page 81)

Operating the ARN
114200-E Rev 00 3-9
Ensuring a Successful Installation
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
Figure 3-1 on page 3-2 ).
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
Table 3-15 .
Table 3-14. V.34 Modem LEDs
LED Meaning
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.