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PA 731 - Product specifications
1-port serial interface, RS232, RS422, RS485, 20 mA CL
- 20 mA current loop, active, passive, with optical isolation
- Addressing as COM1, COM2, COM3, COM4 or selectable through DIP switches (Option S)
- RS232 (Option RC: modem control signals CTS, RTS as RS422 signals)
- RS485 (automatic transmitter/receiver)
- RS422 (constant current)
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