亚洲手机中文字幕一二三四区_欧美A片黄片视频_亚洲六月激情综合久久_亚洲婷亭五月天_激情超大尺度秋霞影院午夜_无码国产精品一区二区免费虚拟Ⅴ_国产成在人线在线播放_芒果视频app禁止大陆观看_免费黄色软件推荐_国产av丝袜熟女

Remote data communication between different standard serial interface with computer, external device or intelligent instrument, conversion to standard serial interface. The converter is compatible with RS-232, RS-485 standard, can convert the RS-232 signal single end balanced differential RS-485 signal, the communication distance of RS-232 converter can be extended to 1.2 km, no external power supply adopts the unique "RS-232 charge pump" drive, don't need to initialize the RS-232 serial port can obtain the power supply, a zero delay automatic transmit receive switching, automatic control and data flow direction of I/O circuit is unique, without any handshake signals (such as RTS, DTR etc.), so as to ensure that the RS-232 prepared in half duplex mode programs running in RS-485 mode without changes, ensure appropriate existing software and hardware interface, converter transmission rate 300-115.2Kbps. can be used in between, the main control machine control and single chip computer or peripheral constitute a point-to-point, point to multipoint remote multi computer communication network, realize multi machine response communication. Widely used in industrial automation control system, smart card, access control system, parking lot system, self-service banking system, the bus fee system, the dining hall meal selling system, employee attendance management system, highway toll station system etc..