Gearmo Industrial RS-232 to RS-422 Converter with Terminal Block

For communication between PC with different standard serial port and external equipment or intelligent instruments, standard serial conversion is necessary. The GM-1005A-B converter is compatible with RS-232C, RS-422 standards. It converts RS-232 signals into balanced differential RS-422 signals. The transmission distance of RS-232 communication can be extended to 1.2km. It adopts unique RS-232 charge pump technology to drive the system, and gains power without initializing RS-232 serial port. This converter is with built-in zero delay auto receiving and transmitting conversion and unique I/O circuit auto control data flow direction without any handshake signal (RTS, DTR); this guarantees that there is no need to modify the programming under RS-232 full duplex mode, it will run smoothly under RS-322 mode, ensure to suitable for current software and hardware. The transmission rate is 300-115.2kbps. It can be used between hosts, host and SCM, which building a point to point, point to multi-point long-distance communication networking. It is widely applied in industrial automation control system, all-in-one card, access control system, parking system, ATM system, bus charging system, canteen ticketing system, attendance system, and toll station system, etc.

• Standards: RS-232C, RS-422 EIA/TIA


• RS-232 DB9 female connector, RS-485 DB9 male connector, with terminal block


• Operating mode: asynchronous full-duplex, differential transmission


• Transmission media: twisted-pair or shielded cable


• Baud rate: 300bps-115.2kbps


• Operating temperature: -40 to 85


• Relative humidity: 5% to 95%


• Transmission distance: 1,200m (RS-422); 5m (RS-232)