MICRONOR AG
MR340-1 DIN Rail Module Controller
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2-Wire Circuit
Half Duplex
D1 (RX+ / TX+) is
pulled up to +5V
D0 (RX- / TX-) is
pulled down to GND
Recommended
resistor is 1KΩ
4-Wire Circuit
Full Duplex
TXD1 (TX+) and
RXD1 (Rx+) are
pulled up to +5V
TXD0 (TX-) and
RXD0 (RX-) are
pulled down to
GND
Recommended
resistor is 1KΩ