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Troubleshooting
4-7
SCM4000
Operator’s Guide/Tech Ref Manual
E280
De Ch1 ULK
Channel 1 Unlock Fault - An
incorrect amount of data is coming
to the given channel.
•
Verify all data rates match
those on the Modulator.
•
Contact technical staff.
If problem persists, contact MRC
Technical Support.
E281
De Ch2 ULK
Channel 2 Unlock Fault - An
incorrect amount of data is coming
to the given channel.
E282
De Ch3 ULK
Channel 3 Unlock Fault - An
incorrect amount of data is coming
to the given channel.
E283
De Ch4 ULK
Channel 4 Unlock Fault - An
incorrect amount of data is coming
to the given channel.
E284
De Ch1 AIS
An Alarm Indication Signal (AIS -
also known as “all ones”) condition
has been detected on Channel 1.
•
This is almost always an
indication of an upstream
problem. Verify that the
Modulator has no related
errors and that the given
channel is enabled on the
Modulator.
•
Contact technical staff.
If problem persists, possible
hardware failure. Contact MRC
Technical Support.
E285
De Ch2 AIS
An Alarm Indication Signal (AIS -
also known as “all ones”) condition
has been detected on Channel 2.
E286
De Ch3 AIS
An Alarm Indication Signal (AIS -
also known as “all ones”) condition
has been detected on Channel 3.
E287
De Ch4 AIS
An Alarm Indication Signal (AIS -
also known as “all ones”) condition
has been detected on Channel 4.
Table 4-3: SCM4000 Demodulator Primary Error Codes (Continued)
Error
Code
Error Message
Meaning
Suggested Operator Action
Suggested Technical Staff
Action
Содержание SCM4000
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