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2.2: LED Descriptions
Issue 9, May 1999
FNC and FNC Customer Use Only
Vol. ll, Page 480.2-8
Maintenance and Trouble Clearing
FJTU-320-515-480
Table 2-12: MC1A-STS1/-ST1P LED Descriptions
LED
Color
Meaning
FAIL/SVCE
Red
An internal failure, or the internal clock or BITS output is down.
Blinking red
Unit MISMOUNT: the system is configured for a different mode, or the
mounted unit is not intended for use in the current configuration.
Green
Normal operation (in service).
Off
Standby or out of service.
LINE
Red
The incoming signal has degraded or failed. A service-affecting alarm, such as
a BERSDP or BERSFP, exists on both drops.
Yellow
One or more non–service-affecting path-level conditions exist. Possible
conditions include a BERSDP, BERSFP, AIS, RFI, or UNEQ (unequipped).
Off
Normal operation (in service).
Table 2-13: MC6A LED Descriptions
LED
Color
Meaning
FAIL
Red
An internal failure, or an incoming signal failure, such as an LOS or LOF.
Blinking red
Unit MISMOUNT: the system is configured for a different mode, or the mounted
unit is not intended for use in the current configuration.
Off
Normal operation (in service).
LINE
Red
The incoming signal has degraded or failed. A service-affecting alarm (such as
BERSDP or BERSFP) exists on both drops.
Yellow
One or more non–service-affecting path-level conditions exist. Possible conditions
include a BERSDP, BERSFP, AIS, or RFI (remote failure indication).
Off
Normal operation (in service).
SEND
Green
The unit is transmitting normally.
Off
Standby or out of service.
RCV
Green
The unit is receiving normally.
Off
Standby or out of service.
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