HEXIN Passive RS232 TO RS485 interface converter 232 TO 485 adapter bidirectional adapter

First, product introduction

HEXIN-III converter two-way interface between the converter, used between the main control computer, the main control computer and the single chip microcomputer or peripherals to form a point-to-point, point-to-multipoint remote multi-machine communication network, to achieve multi-machine response communication, widely used in industrial automation control system, Card, access control system, parking system, self-service banking system, bus toll system, canteen meal system, company staff attendance management system, highway toll station system and so on.

HEXIN-III converter, capable of converting TXD and RXD signals from RS-232 serial ports into two-scale half-duplex RS-485 signals. No external power supply is required, power can be stolen directly from the 3-pin RS-232 port, while the 7-pin request send (RTS), 4-pin Data Terminal ready (DTR) to the HEXIN-III auxiliary power, automatic flow control so that you do not have to reset, hardware and installation software is very simple to use.

Second, performance parameters

1,

serial port features: The interface is compatible with EIA/TIA RS-232C, RS-485 standards.

2,

electrical interface: RS-232 end DB9 pass side interface, RS-485 end DB9 pin connector, with a terminal (five wiring).

3.

Working mode: asynchronous half-duplex.

4,

transmission medium: ordinary wire, twisted pair or shielded wire.

5,

transmission rate: 300~ 11.52K baud rate.

6,

transmission distance: 5 meters (RS-232 end) 1.200 meters (RS-485 end).

7.

Communication protocol: transparent.

8,

working environment: -10 to 85 relative humidity is 5% to 95%.

9,

Signal:

RS-232: TXD, RXD, RTS, CTS, DTR, DSR, DCD, CND;

RS-485: Date+, Date-. GND