Cisco IE-3000-8TC Administration Guide - Page 435

When you see this LED, do, Meaning, Color, Troubleshooting Using the System LED, Same as T1/E1 1

Page 435 highlights

Troubleshooting Using MCS 7890-C1 LEDs Name T1 / E1 1 T1 / E1 2 Connection Alarm Connection Alarm Color Meaning When you see this LED, do this: None (LED is MCS 7890-C1 detects off.) no carrier signal. Ensure that the PSTN connection is secure and configured correctly for the service. Green on MCS 7890-C1 detects carrier signal. Yellow blinking 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. None (LED is MCS 7890-C1 detects - off.) no alarms. Yellow The device that is sending the signal has an error. This is due to a framing error which reports an error in the far end. Check the connection between the far end and the MCS 7890-C1. Red 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. None (LED is MCS 7890-C1 detects Same as T1/E1 1 off.) no carrier signal. Green on MCS 7890-C1 detects carrier signal. Yellow blinking This port is in loopback Same as T1/E1 1 mode. None (LED is MCS 7890-C1 detects Same as T1/E1 1 off.) no alarms. Yellow The device that is - sending the signal has an error. Red MCS 7890-C1 detects Same as T1/E1 1 an alarm. 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 Administration Guide for Cisco Business Edition 3000, Release 8.6(4) 415

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When you see this LED, do
this:
Meaning
Color
Name
Ensure that the PSTN
connection is secure and
configured correctly for the
service.
MCS 7890-C1 detects
no carrier signal.
None (LED is
off.)
Connection
T1 / E1 1
-
MCS 7890-C1 detects
carrier signal.
Green on
This is not an error
condition, but rather an
indication that the port has
been put in loopback mode
for maintenance.
This port is in loopback
mode.
Yellow
blinking
-
MCS 7890-C1 detects
no alarms.
None (LED is
off.)
Alarm
This is due to a framing
error which reports an error
in the far end. Check the
connection between the far
end and the MCS 7890-C1.
The device that is
sending the signal has
an error.
Yellow
The result of an MCS
7890-C1 framing error.
Check the connection
between the MCS 7890-C1
and the far end.
MCS 7890-C1 detects
an alarm.
Red
Same as T1/E1 1
MCS 7890-C1 detects
no carrier signal.
None (LED is
off.)
Connection
T1 / E1 2
-
MCS 7890-C1 detects
carrier signal.
Green on
Same as T1/E1 1
This port is in loopback
mode.
Yellow
blinking
Same as T1/E1 1
MCS 7890-C1 detects
no alarms.
None (LED is
off.)
Alarm
-
The device that is
sending the signal has
an error.
Yellow
Same as T1/E1 1
MCS 7890-C1 detects
an alarm.
Red
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
Administration Guide for Cisco Business Edition 3000, Release 8.6(4)
OL-27022-01
415
Troubleshooting Using MCS 7890-C1 LEDs