User Manual

AMPLIFIER CONTROLLER BOARD REV.5
PUB12-030 Rev. 1 Feb 14, 2013 12-030-1 Amplifier Controller Board Rev.5
1 INTRODUCTION
This manual describes revision 5.0 or higher of the circuit board.
The MXi amplifier control board (Assembly 31C1897) is a single-circuit assembly that provides all of the amplifier
control functions required for the MXi series of transmitters on a single circuit board. This board can be configured
for a number of different transmitter types, power levels, transmission standards and options.
The board implements controls/status/telemetries for remote control through a rear panel connector that will
interface to a typical remote control system (such as Moseley or Gentner), when used in an MXi802 or MXi1002
the controls are disabled. An RS232 serial port is also provided to allow the operator to communicate with the
main controller located inside the power supply chassis. The MXi control board has RF detectors for forward and
reflected power and all the circuitry to support AGC/VSWR/Cutback functions.
The MXi board has a BDM (Background Debug Mode) connector that allows an external computer or laptop to
download the software program into the CPU chip. The CPU chip holds the program in its internal Flash memory
and so there is no external chip or device that need be replaced to change/upgrade the software.
The concept of this design places all of the control and monitoring functions in one place and therefore eases the
setup and maintenance functions on this series of transmitters.