Assembly Instructions

MXI1503-2004 CONTROL UNIT
PUB13-09 Rev 1 31
impedance input of at least 2K ohms should be used. Each telemetry has a description to indicate what parameter it is
measuring.
The MXi provides three remote telemetry outputs that represent the current operating levels of the transmitter.
TX D-Connector
Designation
Description
Pin 1
FWD PWR
Forward RF power level
Pin 2
RFL PWR
Reflected RF power level
Pin 14
AGC SET
AGC Reference Level
Pin 15
Ground
Ground Reference
4.3 INTERCONNECTIONS FROM THE CPU BOARD
The following provides a brief description of the basic function of each connector on this board.
J1 – Serial Interface for Amplifier 1
J2 – Serial Interface for Amplifier 2
J3 – Serial Interface for Amplifier 3
J4 – Serial Interface for Amplifier 4 (for an MXi2004)
J5 – Not Used
J6 – Not Used
J7 – Amplifier Interlocks
J8 – Remote RS232 Interface
J9 – Remote RJ45 Interface
J10 – Parallel Remote Control, Status and Telemetry
J11 – Not Used
J12 – Forward Power
J13 – Reflected Power
J14 – Not Used
J15 – Front Panel Board Interface
J16 – BDM Connector (Only used for programming the microprocessor)
J17 – Test Connector (Only used for in factory testing)
J18 – Factory Use Only
J19 – Factory Use Only
J20 – External 1 Interlock
J21 – 12V DC input
A summary of all the signals on these connectors is given in sheet 5 of schematic 31C1972.