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XTD-750K, 12.75 - 14.5, L01
Document No. 305-0391-032 REV 4 Page 4 of 10
3.1.18 Controls
This specification describes the control functions of the HPA. A limited number of control functions can
be applied locally from the front panel of the HPA as well as remotely via the serial interface. Some of the
control functions can only be applied via the local controls on the HPA. The following paragraphs specify
these control functions and the LOCAL/REMOTE capability. Details of the communication protocol for
serial control and the menu system for the local control are detailed in the operation and installation manual
for this product. Please refer to that document for detailed information.
3.1.18.1 Controls, Local
Function Interface
3.1.18.1.1 AC Prime Power Circuit Breaker
3.1.18.1.2 Local/Remote Local/Remote Switch
3.1.18.1.3 RF inhibit Monitor & Control (Standard Configuration)*
3.1.18.1.4 Interlock Monitor & Control
* The RF output will inhibit (turn OFF) by turning OFF the SSA when M&C connector Pin (g) is
connected to Pin (f) and Pin (Y) is grounded to Pin (Z).
3.1.18.2 Controls, Local & Remote
3.1.18.2.1 HV (ON/OFF)
3.1.18.3 Controls, Remote
3.1.18.3.1 HV (ON/OFF)
3.1.18.3.2 Heater Standby (ON/OFF)
3.1.18.3.3 Gain
3.1.18.3.4 Minimum Power Alarm/Fault
3.1.18.3.5 Maximum Power Alarm/Fault
3.1.18.3.6 Reflected Power Alarm/Fault
3.1.18.3.7 Power Measurement Units (Watts, dBm, dBw)
3.1.18.3.8 Fault Reset
3.1.18.3.9 COM 1 configuration (baud rate, parity, start/stop bits)
3.1.18.3.10 COM 2 configuration (baud rate, parity, start/stop bits)
3.1.18.3.11 HPA Address
Note: Heater Standby reduces the TWT’s heater voltage for situations where the high
voltage is off. Using this mode significantly increases the life of the TWT where high
voltage is off for extended periods of time.
EAR EXPORT CONTROLLED: The information contained in this Manual refers or relates to a product that is subject
to the U.S. Export Administration Regulations (EAR). Transfer of data herein by any means to a Foreign Person,
whether in the U.S. or abroad, may require an export license from the U.S. Department of Commerce.
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