RND 405-00002, Руководство пользователя

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4
EN
EN
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RS-485/422 signal pin assignment
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USB-A: USB signal input and pin assignment diagram
6. Communication connection diagram
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When the mode is RS-232:
DB9 Male(PIN)
Output Signal RS-422 full duplex wiring RS-485 half-duplex wiring
1 T/R+
Transmitting
(A+) RS-485 (A+)
2 T/R-
Transmitting
(B-) RS-485 (B-)
3 RXD+
Receiving
(A+) N/A
4 RXD -
Receiving
(B-)
N/A
5 GND GND GND
6 N/A
7 N/A
8 N/A
9 N/A
RS-232 Device
RS-232 Device