Baxall ZTX3 Mode D'emploi page 7

Connection
Standard Connection
Connect a 75 ohm video coaxial cable terminated with BNC connectors from your
ZTX to your monitor
Connect a 75 ohm video coaxial cable terminated with BNC connectors from your
ZTX to your receiver (see the receiver instructions.)
The default termination for the camera input is 75 ohm. If you want to use the same
video signal for another piece of equipment, connect a T-piece to the camera input,
de-terminate the input using the switch on the rear panel (select Hi-Z, see figure 2)
and ensure that the coaxial cable is 75 ohm terminated somewhere else (e.g. in your
VCR or extra monitor).
The switch setting for old and new style coaxial telemetry is also shown on figure 2.
Figure 2. ZTX Rear Panels
Ω
Twisted Pair Connection, ZTX4 only
Wire up a 6-pin mini-din plug according to figure 3.
Link pins 3 (enable) and 1 (GND) to enable twisted-pair telemetry (and automatically
disable coaxial telemetry).
The default baud rate is 1200 baud. Connect pin 6 (300 baud) to pin 1 (GND) if you
want to use 300 baud.
Connect the plug to the twisted pair connector and connect the other end to your
receiver (see your receiver instructions).
Figure 3. The Twisted Pair Socket
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