A few weeks ago, I asked the reflector if anyone knew which lead
or leads being opened would cause a DVS-2 to stop operating, the purpose of
which was to add this voice keyer to my low-tech switch box which guarantees
that only one radio can transmit audio at a time. (This problem probably
arises only for those people who do not have a sound card in their
computer and who have 2 radios of different manufacture.) No one knew
the answer last time, but it seemed that I was not the only one interested
in doing this. So, after doing some low-tech research, I have found the
answer.
The DVS-2 uses a 7 pin din connector. I bought two of these
connectors at a local electronic supply house (not Radio Shack - they
don't carry them), and made an "extension" cord using twisted pair wire.
(The connectors require very small wire, so small in fact, that I could
barely see what I was doing even with my glasses.) I presume that the
7 pin din connectors that I bought are standard, but just in case they are
not, then do the following:
1.) Look at the wire connection side of the female connector.
(This is the side where you will solder the wires.) Hold the
connector so that the notch is at the bottom (6 o'clock position).
2.) Starting at the notch, go clockwise around the pins. On my
connector, the order of pin numbers was 7, 3, 5, 2, 4, 1, 6.
You can completely disable the DVS-2 if you open the line at
pin 7. I do not know which 2 pins are unused, as pin 7 was
my second guess! (Pin 6, the other one next to the notch is
used, but disabling it will only kill your audio while allowing
the transceiver vox to trip on and off - which I interpret as
having a signal on the air, even though no audio can be copied.)
I hope this helps everyone else who was interested.
73, Dave Clemons K1VUT
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