Attenuator Counts "8; Alarm Condition "9 - Comtech EF Data XTRT-400C Operation And Installation Manual

Command Byte: '8'
Response: "XXXX" counts, ranging from 0 to 4095. This is the value written to the D-to-A converter which controls
the attenuator. For estimated attenuation in dB, use the Advanced Query with parameter 'A'.
Compatibility: Attenuator required.
Command Byte: '9'
Parameter: None
Response: 'A' -- One byte of alarm status.
Byte 'A'
Bit 7: Reserved.
Bit 6: Complement of bit 5.
Bit 5: High Output Power.
Bit 4: Low Output Power.
Bit 3: High Reflected Power (VSWR).
Bit 2: Reserved.
Bit 1: Reserved.
Bit 0: 24V low (extended alarm status)
Parameter: '('
Response: "ABCD"
Byte 'B'
Bit 7: Reserved.
Bit 6: Complement of bit 5.
Bit 5: Reserved.
Bit 4: Reserved.
Bit 3: Reserved.
Bit 2: Reserved.
Bit 1: Reserved.
Bit 0: Reserved.
Byte 'D'
Bit 7: Reserved.
Bit 6: Complement of bit 5.
Bit 5: Reserved.
Bit 4: QSPI error.
Bit 3: Reserved.
Bit 2: Reserved.
Bit 1: Reserved.
Bit 0: Overdrive.
Notes:
Low Output Power, High Output Power and High Reflected Power are user-defined alarms.
Compatibility: Not available when querying analog amplifiers via a controller.
MNC-0500-038
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Amplifier Communication and Protocol, XTRT, Touchscreen TWTA
Attenuator Counts
Alarm Condition
Byte 'C'
Bit 7: Reserved.
Bit 6: Compliment of bit 5.
Bit 5: Reduce Drive Power (too much drive power to get
requested Power level.)
Bit 4: Constant Power Suspended. (suspicious drop in
output power: check drive power.)
Bit 3: Raise Drive Power (insufficient drive power to get
requested Constant Power level.)
Bit 2: Reserved.
Bit 1: Reserved.
Bit 0: Reserved.
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