Jim Jackson wrote this message on Wed, Aug 23, 2006 at 21:33 +0100:
> > > On Mon, 21 Aug 2006, weide72 wrote:
> > > It depends on how you number the pins. My page uses a more standard pin
> > > numbering, the Technologics manual uses a non-standard numbering.
> > > So be carefull and follow the manual, but make sure you understand which
> > > they call pin 1 etc
> >
> > Yes, they do this to match the 10-pins connector with the
> > corresponding DB9 pins.
>
> Yes I know. But at the time I wrote my web page (autumn/fall 2004!), their
> documentation did not indicate that they used non-standard pin numbering.
> There was much confusion untill they updated their manuals.
I have recently found out that there are two different ways to layout
the 10 pin header for DB-9 serial ports, what I call the mechanical way,
and the electrical way...
The mechanicial is easiest for when you lay it out on a board to DB-9
connector as you don't have to cross traces and only have to use one
layer, while the eletrical is more difficult and requires two layers...
Mechanical db-9 pin number in header possition:
1 2 3 4 5
6 7 8 9 10
Eletrical (match standard pin numbering to db-9 pins):
1 3 5 7 9
2 4 6 8 10
It appears through my quick testing of com2 that is part of TS-ENC720
that they have gone w/ the mechanical layout...
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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