Hello Andy,

Sorted  now, thanks. The flying connectors from the back of the serial
card are embossed S4, S5, S6 and S7. But these don't match the Windows
port  numbering.  The  lead marked S3 was actually operated by Windows
port  S4.....  So  you  were  right,  I was looking at the wrong port.
Windows Port S7 which runs the Lady Heather GPS stuf is actually S5 on
the  card.  maybe  they  can be aligned, but now i see what's happeing
it's no big deal.

I am am correct in tying pins 4 and 7 together on the serial port plug
to   share   the  load  of the SSR input? It is working now like that,
so hopefully that's why you made both high or low together? Many
thanks again!

Thursday, April 26, 2018, 8:53:57 PM, you wrote:

> Have you checked it with any of your other COM ports?
> Check DTR and RTS both toggle appropriately




> Andy
> www.g4jnt.com

--
Best regards,
 Chris                            mailto:[email protected]