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<DIV><PRE>Hello Pete,</PRE><PRE>I designed a 3rd party IRLP board a few years ago, and published the designs on my web site:</PRE><PRE><A href="http://www.qsl.net/k0kn/plri.html">http://www.qsl.net/k0kn/plri.html</A></PRE><PRE>I am using two of these on app_rpt with good results. The hardware DTMF decoder is not supported by app_rpt however.</PRE><PRE>I'm not sure how app_rpt would handle using one parallel port for multiple nodes though. I've not tried to define </PRE><PRE>parallel port pins for more than one node on a server. My parallel port definitions from usbradio.conf:</PRE><PRE><SPAN lang=EN><P>; IRLP board support</P><P>pp3 = ptt ; out0, out1 or ptt</P><P>; pp10 = in ; in, cor or ctcss</P><P>; pp12 = in ; pins 10,12,13,15 are for DTMF</P><P>; pp13 = in </P><P>; pp15 = in </P><P>pp11 = cor</P><P>; pp4 = out0 ; pins 4,5,6 are AUX 1,2,3, default off</P><P>; pp5 = out0 </P><P>; pp6 = out0 </P><P> </P><P><FONT face=Arial size=4>73..</FONT></P><P><FONT face=Arial size=4></FONT> </P><P><FONT face=Arial size=4>Kyle</FONT></P><P><FONT face=Arial size=4>K0KN</FONT></P></SPAN></PRE><PRE>--- Original Message ---</PRE><PRE>Hi All,
Is there a circuit board design for running COS/PTT for multiple radios
off the parallel port? It would make using consumer FOBs much simpler.
It would need some PTT drivers and COS buffers.
I thought there might be a cactus board or 3rd party IRLP board that may
already in circulation.
Pete
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