Product manual

Appendix C: Communication Interface Examples
106 025-9158L
Model 26 / Conventional Radio / Series 4000 Console
Conventional Radio Channel
Model 26
Model 4000 Console
Dual Channel Card
Conventional
Radio
COR+
RX Audio
TX Audio
PTT*
XBUSY
Data Mute
PA Ready
COR+
RX Audio
TX Audio
PTT*
(if available)
XBUSY IN
XBUSY OUT
RX Audio
TX Audio
(Alternate)
*This channel allows both the
Model 26 and the Console to
key the radio.
Zetron Model 4010, Model 4024 or Model 4048 Channel Card Option Switch settings:
• Set Busy Transmit Inhibit switch ON for applicable channel.
• Set Cross Mute Enable switch (OPT) ON for applicable channel.
Model 26 programming:
• Set Data Mute Active Polarity - LOW
• Set PA Ready Active Polarity - HIGH
• Set Communications mode to COR, TX on COR HI/LOW if COR signal is
available.
• Set Communications mode to VOX if COR signal not available.
• Use either Data Mute or PA Ready, depending on system design. (See
PA Ready
Active Polarity on page
44 for signal descriptions)