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CAS CI-400 Series - RS-422;RS-485 Serial Communication (Option)

CAS CI-400 Series
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103
9-3 RS-422/RS-485 Serial Communication (Option)
RS-422 & 485 transmit signals with the voltage difference, which are more stable for electric
noises than other communication methods.
In addition, the AC power cable or other electric wires should be placed separately, and the
shield cable (0. or more) dedicated to communications should be applied the
recommended use distance is within 1.2km.
Output Method & Format
Same as RS-232C above
- RS-422 / RS-485 Connect Diagram -
Computer
Indicator
TXD+ RXD+
TXD- RXD-
RXD+ TXD+
RXD- TXD-
Computer
Indicator
P RXD+
N RXD-
TXD+
TXD-

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