5 Sep
2002
5 Sep
'02
7:03 a.m.
ISTR that 422 was simply a balanced line version of
232. I think you
can just tie to the non-inverting line and ground and make it work.
Unless there's something else needed.
That won't work for more than one signal, since there isn't a common
reference. Also, EIA-232 levels could damage EIA-422 devices.