User Manual Control Units
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Page 23 of 44
3.8.3. RS-422 Bi-directional Connection
A device controlled via RS-422 can be connected as described below.
S 5 - S 9 RS-422 Port Description
Pin 1 TX- Data - from Assistant or Assistant-S
Pin 2 TX+ Data + from Assistant or Assistant-S
Pin 3 RX+ Data + to Assistant or Assistant-S
Pin 4 RX- Data - to Assistant or Assistant-S
In B-
In A+
Signal Ground
Signal Output
1 432
Assistant or Assistant-S
S 5 to S 9
Controlled Device
RS-422
RX+
RX-
TX+
TX-
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