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ASYNC 232↔422/485 CONVERTER
10.
11.
4.1.3 2-W
IRE
C
ONNECTION
only the transmit (XMT) pair
Converter Signal RS-485 Signal
XMT+..................................+ (positive)
XMT-...................................- (negative)
IMPORTANT!
If you are not using two IC476A-X-R2s back to back and the procedure on
the previous page produces garbage data (or none at all), flip the “A” and
“B” leads at one end of the 485 connection.