Contec Conprosys CPS-MC341-ADSC1-111 Reference Manual page 59

CPS-MC341-ADSC1-111, CPS-MC341-ADSC2-111, CPS-MG341-ADSC1-111 Reference Manual (Hardware)
Connecting to an external device
Connect the product in accordance with the specification of the external device.
 Full Duplex
Full duplex needs three or more sets of twisted-pair.
Two sets are for a signal line, other free line(s) is (are) for the signal ground (SG).
Connect [TX + and TX-] [RX+ and RX-] to make them as a set of twisted pair wire.
This product
TX＋
TX－
RX＋
RX－
SG
— —
Installation
TX+ TX－ RX+ RX－ SG
+ －
— 59 —
RS-422A/485
5-pin connector
External device
SG
External device
RX＋
RX－
TX＋
TX－
SG