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RS232 Communication Pin Map
Note. BP-DT4 pin map is twisted Rx(3), Tx(2).
RS485 Communication Pin Map (Option)
RS-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 (0.5Φ or more) dedicated to communications should be applied.
The recommended use distance is within 1.2km.
Computer
Indicator
P RS-485 (TRX+)
N RS-485 (TRX-)
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