Terrasat IBUC 3, Operation Manual

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C-8
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IBUC
3
, IBUC
3 G
Operations Manual: Embedded Web Pages
Engineered to Endure
• Simulated Alarm
Indicates whether a simulated alarm has been issued. A simulated alarm is mainly
used for testing. Options include:
•
OK
•
Major
• Temperature (Internal)
Indicates that the internal temperature of the IBUC exceeds 85° C.
Note:
If the High Temperature Shutdown alarm has been enabled and the internal
temperature of the IBUC exceeds 85° C, the IBUC will shut down automatically
• ALC Range
Indicates that the Tx Output level is being kept constant by the automatic level
control (ALC) function. Options include:
•
OK
•
Out of Range
•
N/A
Note:
An alarm occurs when the IBUC can no longer maintain the Tx Output level. This
alarm is coded into the IBUC and is not available for user configuration.
• AGC Range
Indicates that the automatic gain control function is unable to maintain the gain
level.
• 10 MHz Source
Indicates whether the source of the 10 MHz reference signal is internal or external.
Note:
For IBUCs operating with only an external 10 MHz reference signal, this field is
labeled “10 MHz Detector” and the options include:
•
OK (indicates that the 10 MHz signal is functioning properly)
•
Low (indicates that the 10 MHz signal is low or missing)
• Synthesizer Lock
Indicates whether the Synthesizer frequency is locked (or stable). When the
Synthesizer is out-of-lock, this alarm causes the muting of the amplifier and
automatically shuts down the IBUC. Options
include:
•
OK (indicates that the Synthesizer is locked and functioning properly)
•
Major
Note:
This alarm is always a major alarm and is not available for user configuration.