7
LED Operation
The IE-iMcV-T1-Mux/4 + Ethernet fe atures diagnostic
LED
s as explained below.
10/100BaseT Connector
LNK:
•
OFF when port is not linked/connected
•
Glows green when link is established
•
Blinks green during data activity
FDX:
•
OFF when port is not connected or when running at
half-duplex
•
Glows yellow when port is running at full duplex
•
Blinks yellow when collisions occur
T1 RJ-48 Connectors
ALARM:
•
OFF during normal operation
•
Blinks red+green simultaneously
when CV errors detected on the T1
line
•
Glows red+green when loss of
service (LOS) is detected, OR
continuous bit errors are detected
on the T1 line at far end of the
optical line
•
Blinks red when local CV errors
detected on T1 line.
•
Glows red when LOS detected on
the local T1 line, OR
when continuous errors are
detected on the local T1 line
STAT:
•
Off if not
equipped
•
Glows green
during normal
operation
•
Glows
red+green when
out-of-service or
when the port is
in a loopback or
test state
•
Glows red when
the Host to
Remote fiber
link(s) is down or
badly corrupted