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TM 11-5820-890-30-5
2-19. REMOTE
SIGNAL NAME
REM PTT
2/6 WIRE MODE
REM DDMC
RADIO SQUELCH
CONTROL OPERATION. Continued
DESCRIPTION
PTT request from remote control unit,
AUDIO MODULE PTT-N
SIDETONE DISABLE
40 kHz XMT DATA
XMT REM AUDIO
REM
REM 8 CLK
REM 8 STROBE
REM DATA
REM 24 CLK
REM 24 STROBE
SERIAL DATA
DISPLAY CLK
Logic 1 = 6-wire mode (control-monitor).
Logic 0 = 2-wire mode (complete remote control).
Digital data mode control, logic 0 = digital, logic 1 = analog.
Logic 1 indicates a received signal.
PTT generated by RT.
Logic 1 disables sidetone.
Data signal from remote control unit to be transmitted by RT.
Audio signal from remote control unit to be transmitted by RT.
Set to logic 1 by FCTN switch.
320-kHz clock in groups of 8. Used with 8-bit data.
Logic 1 pulse used with 8-bit data.
Remote control data to control module, both 8-bit and 24-bit.
320-kHz clock in groups of 24. Used with 24-bit data.
Logic 1 pulse used with 24-bit data.
Data from control module to be sent to remote control unit and display.
320-kHz clock used with SERIAL DATA in groups of 10.
DISPLAY GATE-N
Logic 0
DATA AVAIL
Logic 1
DISPLAY INHIBIT
Logic 1
REM CLR-N
Logic 0
TRI-STATE EN
Logic 0
40 kHz DET
Logic 1
40 kHz A/D SEL
40 kHz XMT EN
2880 DET-N
2880 RCV DATA
2880 XMT EN
CONT FSK DATA
A/D RCV REM SEL
INTERCOM XMT EN
logic 1 = PTT.
pulse used with SERIAL DATA.
indicates data is available.
turns off RT display.
pulse when FCTN is set to REM.
pulse when FCTN is set to REM.
indicates presence of 40-kHz carrier.
Indicates type of signal to be modulated onto 40-kHz carrier.
Logic 1 = analog. Logic 0 = digital.
Logic 1 enables 40-kHz carrier.
Logic 0 indicates presence of 2880-Hz carrier.
Serial input of 2880-Hz carrier.
Logic 1 enables 2880-Hz carrier.
Data to be FSK modulated onto 2880-Hz carrier.
Logic 0 = digital.
Logic 1 = analog.
Logic 1 = intercom mode.
2-24
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