Condition: 100% Brand New Item Type: Communication Data Converter Color: Shown as Picture Material: ABS Model: UT-2201 Interface Characteristics: The Interface Is Compatible With The Rs232c and Rs485 Standards Of Eata Electrical Interface: DB9 Female Connector At RS-232 End, Db9 Male Connector At Rs-485 End Working Mode: Asynchronous Half-duplex Differential Transmission Transmission Medium: Twisted Pair Or Shielded Wire Transfer Rate: 300bps-115.2kbps Transmission Distance: 1,200 Meters/3937ft, Rs-485 End, Rs-232 End 5 Meters/16.4ft 1、No external power supply required, driven by "RS-232 charge pump", no need to initialize RS-232 serial port. 2、In order to facilitate the process data communication between computers, external devices or intelligent instruments with different standard serial interfaces, the conversion between standard serial interfaces must be performed. 3、With zero delay automatic transceiver conversion function. 4、RS485 communication distance up to 1200 meters. 5、I / O circuit automatically controls the direction of data flow. 6、Compatible with RS232 and RS485 standard interfaces. 7、Can convert single-ended RS-232 signals to balanced differential RS-485 signals, RS-232 hole type. 8、Connector RS-485 DB9 pin connector. 1 x Adapter 1 x Manual