22
RS-232
↔
RS-422 INTERFACE CONVERTERS
5. If the cable is shielded, you can (if you want)
connect the shield to ground
at one end of the cable
only
—at the Converter’s “G” terminal, for
example. This is strictly optional; the Converter
doesn’t require that you use shielded cable, or a
cable with a ground wire, to operate properly.
Do
not
connect a cable shield or a ground wire
to ground at both ends of the RS-422 cable. The
Converter does not reference ground for RS-422
data transmission and you could create an
electrical “ground loop” that could severely
damage your equipment.
Summary of Contents for IC470A
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