Moxa Technologies MGate MB3000 Modbus Instrukcja Użytkownika Pobierz pdf (Strona 41)

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Chapter 5 Pin Assignments

The MGate MB3000 uses DB9 (male) serial ports to connect Modbus RTU or ASCII devices.

Each port supports three serial interfaces: RS-232, RS-422, and RS-485 (both 2 and 4-wire).

DB9 (Male)

15

69

Pin RS-232

RS-422 and

RS-485 (4-wire)

RS-485

(2-wire)

1 DCD TxD-(A) ---

2 RxD TxD+(B) ---

3 TxD RxD+(B) Data+(B)

4 DTR RxD-(A) Data-(A)

5 GND GND GND

6 DSR --- ---

7 RTS --- ---

8 CTS --- ---

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 52 53

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