Cisco IE-3000-8TC Administration Manual page 435

Name
T1 / E1 1
T1 / E1 2
Troubleshooting Using the System LED
You, as a System Administrator, can also monitor the health of the Cisco Business Edition 3000 system
through the status of the System LED mounted on the MCS 7890 server. This LED gives you primary
OL-27022-01
Color
Connection None (LED is
off.)
Green on
Yellow
blinking
Alarm None (LED is
off.)
Yellow
Red
Connection None (LED is
off.)
Green on
Yellow
blinking
Alarm None (LED is
off.)
Yellow
Red
Administration Guide for Cisco Business Edition 3000, Release 8.6(4)
Troubleshooting Using MCS 7890-C1 LEDs
Meaning When you see this LED, do
this:
MCS 7890-C1 detects Ensure that the PSTN
no carrier signal. connection is secure and
configured correctly for the
service.
MCS 7890-C1 detects -
carrier signal.
This port is in loopback This is not an error
mode. condition, but rather an
indication that the port has
been put in loopback mode
for maintenance.
MCS 7890-C1 detects -
no alarms.
The device that is This is due to a framing
sending the signal has error which reports an error
an error. in the far end. Check the
connection between the far
end and the MCS 7890-C1.
MCS 7890-C1 detects The result of an MCS
an alarm. 7890-C1 framing error.
Check the connection
between the MCS 7890-C1
and the far end.
MCS 7890-C1 detects Same as T1/E1 1
no carrier signal.
MCS 7890-C1 detects -
carrier signal.
This port is in loopback Same as T1/E1 1
mode.
MCS 7890-C1 detects Same as T1/E1 1
no alarms.
The device that is -
sending the signal has
an error.
MCS 7890-C1 detects Same as T1/E1 1
an alarm.
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