Advantech PCL-740 Dokumentacja Pobierz pdf (Strona 8)

Chapter 1 Introduction 5

Current-loop interface

• Signal driver/Receiver: 6N136

• Signals: TxD+, TxD-, RxD+, RxD-

• Current value: 20 mA (Standard)

• Mode: Asynchronous, full duplex

• Baud-rate: 50 to 115200 bps

• Transmission distance: 1000 m

RS-422 Interface

• Signal driver/receiver: SN75176, SN75173

• Signals:

TxD+, TxD-, RxD+, RxD-, RTS+, RTS-, CTS+, CTS-, GND

• Mode: Asynchronous full duplex, point-to-point

• Max data rate: 115 Kbps

• Max data distances: 4000 feet (1220 meters)

RS-485 Interface

• Signal driver/receiver: SN75176

• Signals: DATA+, DATA-, GND

• Mode: Half duplex, multi-drop

• Max data rate: 115 Kbps

• Max data distances: 4000 feet (1220 meters)

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Advantech PCL-740 Dokumentacja Strona 8