MNC-0500-026
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Revision M
Amplifier Communication and Protocol, Rabbit CPU
Summary Status
Command Byte:
‘1’
Response:
“AB” formatted as follows:
Byte ‘A’ Byte ‘B’
Bit 7: Reserved Bit 7: Reserved
Bit 6: Complement of Bit 5 Bit 6: Complement of Bit 5
Bit 5: Power Supply Enabled Bit 5: Summary Fault
Bit 4: High Voltage On Bit 4: Heater Standby
Bit 3: Standby Bit 3: Output Power changed 0.2 dB
since last Power Out query
Bit 2: Remote Mode Bit 2: Alarm Exists
Bit 1: Constant Power Bit 1: High Voltage Level Reduced (if
using a XTC-100D configured for
analog ODUs, this bit means: AMP
Not Connected)
Bit 0: RF Inhibited Bit 0: Auto HV ON (HV selected, but HV
not ON)
Notes:
Power Supply Enabled is only defined for amplifiers connected to a
controller. If you query an amplifier through a controller, the controller
generates the summary status response on behalf of the amplifier. Thus it
can indicate Power Supply Enabled status. Amplifiers cannot respond to
queries if power is off.
If High Voltage On and Standby are both zero, the amplifier is in “Filament
Time Delay.” Outdoor Units are always in Remote Mode unless they are
configured with a Local Override switch.
RF can be inhibited through the user front panel or by serial command. The
High Voltage Level is Reduced/Restored via command ‘N’. This bit is defined
for Tri-Band amplifiers with the Voltage Shift Option.
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