Tony Duell wrote:
So, I think the problem reduces to 'how to
interconnect RS232 ports'. let
me add some constraints :
Must work over a distance longer than the RS232 spec allows (i.e. the
answer is probably not 'A long RS232 cable' :-)).
Prefereably no cables at all.
Possibly a bit OTT but these guys seem to have what you want:
http://www.bb-elec.com/product_family.asp?familyid=145
"legacy" serial over WiFi.
I've used their RS232 <-> current loop converters, but no experience of
any of their products at this end of the complexity spectrum.
Adrian