RS232 to 485 Passive Interface Converter, RS232 to 485 converter (4-pin)

RS232 to 485 Passive Interface Converter, RS232 to 485 converter (4-pin)

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Bidirectional interface converter between RS-232 and RS-485, applied to the host computer, the host computer and the microcontroller or peripherals constitute a point-to-point, point-to-multipoint remote multi-machine communication network to achievemulti-response communication, widely used in industrial automation and control systems, card access control systems, parking systems, self-service banking system, bus fare collection system, canteen Shoufan system, employee attendance management system, highway toll station systems, etc..
The converter can convert the RS-232 serial port TXD and RXD signals two-wire balanced half-duplex RS-485 signals. No external power supply directly stealing from the RS-232 port 3 feet by 7 feet at the same time request to send (RTS), the 4-foot data terminal ready (DTR) to the auxiliary power supply converters, automatic flow control so you do not have to Reset, hardware and installation is very simple to use.

Performance parameters:
Serial characteristics: Interface is compatible with EIA / TIA RS-232C, RS-485 standard
Electrical interfaces: RS-232C terminal DB9 hole connector, RS-485 end DBP pin type connector with terminal (four wired or six
Bit wiring)
Working mode: asynchronous half-duplex
Transmission medium: Ordinary Line, twisted pair or shielded wire
Transfer rate :300-115200BPS
Transmission distance: 5 meters (RS-232 end) 1200 m (RS-485 end)
Communication protocols: Transparent
Signal: RS-232: TXD, RXD, RTS, CTS, DTR, the DSR, DCD, GND
RS-485: Date, Date-, GND

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