Hight quality super mini RS-232 to RS-485 passive interface converter 485 converter DB9 to 3-wire terminal adapter 1.2km

To facilitate different standard serial interface with a computer , an external device or a smart remote data communications between instruments , the need for mutual conversion of a standard serial interface . The converter is compatible with RS-232,RS-485 Standards , to convert single-ended RS-232 to RS-485 Balanced differential signal, communication distance is extended to 1.2 Kilometer,No external power supply needed. features a unique "RS-232 Charge Pump "Drive ,Do not need to initialize RS-232 Serial port to get power supply,With zero delay automatic transceiver conversion, uniqueI / OCircuit automatically controls the data flow direction,Without any handshaking signals(AsRTS,DTRWait),Which ensures that theRS-232Half-duplex mode can be prepared by the procedure without changing theRS-485Mode operation , to ensure appropriate operation of the existing software and hardware interfaces , transfer rate converter 300-115.2Kbps.Can be applied between the host computer , the host computer and the microcontroller or peripheral formed between point to point, multipoint remote multi-machine communication network,Multi-machine communication response.Widely used in industrial automation and control systems, card , access control systems, parking systems , self-service banking system , bus charging system , canteen Canteen Systems, Inc. employee attendance management system , highway toll systems, etc.

Features:

• Compact, use DB9 Connector,With a terminal .
• CompatibleRS-232,RS-485TIA/EIAStandard
• Automatic transmission/Receive data without external flow control signals(RTS)
• Power supply:The unique serial charge pump drive technology , no external power supply,True three-wire(TXD.RXD.GND)Wire communication , no need to initialize the serial port
• Can connect 32 Network devices
• Communication distance:1,200Meter
• Communication speed:300BPS-115.2KBPS
• Transmission medium:Twisted pair or shielded cable
• Work:Asynchronous half-duplex (RS-485)
• Applies to all communication software used,Plug and Play
• Dimensions:63mm× 33mm × 17mm
• Use of the environment :-25°To70°Relative humidity5%To95%
• Support DOS/WIN95/WIN98/WIN2000/NT/XP/7/8 Linux,etc