Kantronics MT1200, User Manual

Page: 47 / 157

•
Attach the wire from pin 3 (push-to-talk) on the DSUB-9 to the
microphone connector’s PTT pin,
•
(Optional) for base or mobile units, attach the wire from pin 9 (one path
to ground) on the DSUB-9 to the ground pin on the microphone
connector.
Connecting your Transceiver’s Speaker Plug to Your MT1200
Use an appropriate third party speaker plug and the notes taken earlier to do the
following wiring to the DSUB-9 cable assembly:
Step 1. Locate the wire that connects to the audio of the external speaker plug and
attach it to the wire from pin 5 on the DSUB-9 (Receive Audio)
Step 2. Locate the wire that connects to the ground of the external speaker jack and
attach it to the wire from pin 6 on the DSUB-9 (Ground)
This is all you need to do to wire the speaker plug part of the assembly.
Important: Keep your wiring notes for future reference.
This completes the construction of your transceiver cable assembly. Now it needs to be
connected.
Connecting Your Transceiver Cable Assembly
Now you are ready to use this cable assembly to finish assembling your packet radio
station.
Step 1. Check to be sure all the parts of your completed cable assembly are properly
fastened and ready for connection to your transceiver and your MT1200.
Step 2. Turn OFF all power.
Step 3. Plug the male DSUB-9 connector on the cable into the female DSUB-9
connector on the MT1200’ “Radio” port,
Step 4. Secure the male DSUB-9 connector on the cable to the female DSUB-9
connector on the MT1200’ “Radio” port, by screwing the two long, half-
threaded screws into the threaded nuts on each side of the MT1200’ “Radio”
port,
39