RS232 TO RS485/RS422 INTERFACE CONVERTER

Product Description

Overview： In order to facilitate the allocation of a different standard computer serial interface, external devices or between the intelligence apparatus for remote data communication, the need for standards conversion of the serial interface. Converter compatible with RS***2C, RS***5, RS***2 standard, single-ended to the RS***2 balanced differential signal is converted to the RS***5 or RS***2 signals. Converters can be RS***2 communications to extend to 1.2 kilometers away from the need for external power supply using a unique "RS***2 charge-pump" driven by the initialization does not require RS***2 serial port available power. Internal transceiver with auto-zero time delay conversion, unique I / O circuit of automatic control data flow direction, and without any handshake signal (such as RTS, DTR, etc.), no jumper settings to achieve full-duplex (RS***2) , half-duplex (RS***5) model of conversion, so as to ensure the RS***2 full duplex, half-duplex mode without changing the preparation procedures can be run in RS***5/**2 mode to ensure that it meets the existing operating software and interface hardware. Transfer rate converter ******5.2Kbps, can be applied to Master Control between Master Control between peripherals and MCU or constitute a point-to-point, point-to-multipoint communication network remote multi-response multi-machine communication widely used in industrial automation control systems, card, access control systems, parking systems, self-service banking system, the bus fare collection system, canteen ticketing system, the company staff attendance management systems, highway toll station systems. Performance parameter： 1, connection characteristic: Connection compatible EIA/TIA RS***2C, RS***5/RS***2 standard 2, electrical connection: RS***2 carries the DB9 pass coupling, RS***5/**2 carries the DB9 needle coupling, matches the wiring column 3, the working: The asynchronous full-duplex, the half-duplex difference transmissi