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Using Front Panel LEDs to Solve Problems 71
Use the front panel LEDs to determine the VCN AP status after POST.
Ta b le 9
provides detailed information summarized in Ta ble 1 0.
Tabl e 9 Determining VCN AP status from the LED Indications after POST
State Ethernet Line Power Notes
OFF OFF OFF OFF VCN AP is not
connected to a power
source.
Power-on ON if user
data cable is
connected.
OFF if user
cable is not
connected.
OFF if the line is
not connected.
If the line is
connected, it is
steady green for
2 minutes after
POST; After 2
minutes it can
be steady green
if there is no
traffic, and
flashing green if
there is traffic.
The above states
are normal.
If the LED is not
steady green
during the first 2
minutes after
POST, there is a
communication
problem.
Any other
appearance
after the first 2
minutes
indicates the
presence of a
problem.
During
POST, the
LED is
orange. If
the LED
remains
orange after
30 seconds,
the VCN AP
is faulty and
should be
replaced.
If the Power LED
remains orange after
30 seconds (POST),
the technician uses
the RS-232 LMI
connector and
terminal emulation to
view the VCN AP
diagnostic messages
on his terminal screen.
Voice Call Not
Applicable
(NA)
NA NA Connection to power
is not needed to make
a voice call.
An Ethernet
connection is not
required.