* Ron Wright <[EMAIL PROTECTED]> [2007 Aug 03 08:48 -0500]:
> Nate,
>
> I looked in my KPC-3+ manual and they do call out a DCD line on both the
> RS232 DB25 connector, pin 8, and also on the 9 pin radio connector. However,
> I cannot find any reference to it in the manual. Probably there, but cannot
> find. Wonder why they could put in a simple chart saying "pin 1, does this,
> lo or high to turn on/off".
>
> In the RS232 spec the pin 8, known as CD, is Receive Line Signal Detector.
> It does take the unit on/off line.
>
> So I am assuming if the CD (DCD here) is in off state then the TNC will not
> do anything including receive or transmit???
Perhaps this was dropped in the newer KPC-3 command set, but my old
KPC-2 version 5.0 has this to say about the CD command:
CD INTERNAL | EXTERNAL | SOFTWARE v3.0
...
When set to EXTERNAL, the carrier detect is supplied by an external
device, connected to the XCD pin on the radio port.
HTH,
73, de Nate >>
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