Advantech PCL-740 User Manual page 8

• 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
• 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)
• 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)
Chapter 1 Introduction 5