UHF Analog Driver/Transmitter/
Chapter 2, System Description,
Translator
Maintenance & Remote Control Connections
LX Series, Rev. 3
2-19
Signal Name
Pin
Designations
Signal Type/Description
RMT
Transmitter
Operate
TB30-6
Discrete Open Collector Input - A pull down to
ground on this line indicates that the transmitter is
to be placed into the operate mode.
RMT
Transmitter
Stand-By
TB30-7
Discrete Open Collector Input - A pull down to
ground on this line indicates that the transmitter is
to be placed into the standby mode.
RMT Power Raise
TB30-8
Discrete Open Collector Input - A pull down to
ground on this line indicates that the transmitter
power is to be raised.
RMT Power Lower TB30-9
Discrete Open Collector Input - A pull down to
ground on this line indicates that the transmitter
power is to be lowered.
RMT
System Reflect
Power
TB30-10
Analog Output (0 to 4.0 V). This is a buffered loop
through of the calibrated “System Reflected Power
” and indicates the transmitter's reflected output
power. The scale factor is 25% = 3.2V.
RMT System
Visual/Forward
Power
TB30-11
Analog Output (0 to 4.0 V). This is a buffered loop
through of the calibrated “System Visual/Avg.
Power ”. Indicates the transmitter's Visual /
Average power. Scale factor is 100% = 3.2V.
RMT
System Aural
Power
TB30-12
Analog Output (0 to 4.0 V). This is a buffered loop
through of the calibrated “System Aural Power ”.
Indicates the transmitter's forward Aural output
power. The scale factor is 100% = 3.2V.
RMT Spare 1
TB30-13
Remote connection to spare module - Use is TBD.
RMT Spare 2
TB30-14
Remote connection to spare module - Use is TBD.
System Reflect
Power
TB31-13
Analog Input (0 to 1.00 V). This is the input of the
“System Reflected Power ” indicating the
transmitter's reflected output power. The scale
factor is 25% = 0.80V.
System Visual /
Forward Power
TB31-14
Analog Input (0 to 1.00 V). This is the input of the
“System Visual / Forward Power ” indicating the
transmitter's forward Visual / Forward output
power. The scale factor is 100% = 0.80V.
System Aural
Power
TB31-15
Analog Input (0 to 1.00 V). This is the input of the
“System Aural Power ” indicating the transmitter's
forward Aural output power. The scale factor is
100% = 0.80V.
IF Processor
IF Signal Select
TB31-3
Discrete Open Collector Input – By connecting a
low to this pin, the Modulator IF source is used by
the IF Processor module. When floating the IF
from the internal or external Receiver is used.
(NOTE: The IF Processor board must be configured
for external switching by placing jumper W11 on
J29 between pins 1 & 2).
IF Processor
DLC Voltage
TB31-4
Analog Output (0 to 5.00 V). This is the input of IF
Processor module for digital system RF output
power control.
