27 Jun
2006
27 Jun
'06
8:57 a.m.
Jay West wrote:
We also commonly saw systems (GA Zebra for one) that
used RS423, which
was the same as RS232 except the voltage levels which indicated the
logic levels. I *think* that on RS232 the swing was around 12v, and on
RS423 it was around 4v... something along those lines. It was usually
possible to plug an RS232 terminal into an RS423 port depending on the
tolerances in it's design.
Yes, that sounds about right. It does look like this equipment has an RS423
mode; I just need to work out how to configure it :)
(I've used RS232 devices against RS423 before so I know it *can* work - I
suspect that I just need a healthy +5V supply rail on this intended device so
that it stands a better chance of working)
cheers
Jules