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Front Panel MX410/MX412 System Manual
4-10 PRELIMINARY 61189500L1-1B
LED Indicators
The LEDs on the front panel of the MX410/MX412 indicate the status of the power, DS1,
Ethernet, and alarm interfaces. See Table 4-7 for a listing of the LEDs and their indications.
Table 4-7. LED Indication
Label Status Description
ACT
Green Normal operation
Green/Amber (Alternating) Normal operation and console session is open
Amber Software transfer in progress
Red/Amber (Alternating) Self-test failed and console session is open
Red Self-test failed
Flashing Red Unit failure
ALM
Green No critical, major, or minor alarms
Amber Active acknowledged non-critical alarm
Flashing Amber Active acknowledged critical alarm
Red Major or minor alarm in progress
Flashing Red Critical alarm in progress
PSU (A/B)
(MX410 only)
Green Normal operation
Red PSU failure
DS1
(1-4) MX410
(1-12) MX412
Off Port disabled
Green Enabled and normal operation
Amber Locally originated test in progress
Flashing Amber Remotely originated test in progress
Red Non-critical DS1 alarm in progress (for example, AIS)
Flashing Red DS1 LOS (critical DS1 alarm; non-critical system alarm)
1 Second Flashing Red Single code violation or burst of code violations just
occurred
ETHERNET
(1-4)
Off Link not established
Green Link established
Green/Amber (Alternating) Activity on the line