HESF-T-013 is a mini fiber converter which supports asynchronous RS-232. It is the best choice for connecting a remote terminal unit (RTU) to a HOST or a SCADA controller. It supports RS-232 asynchronous communication protocol. The RS-232 port supports data (TXD or SD) sending control, thus to improve the ability to adapt to all kinds of software; it also simplifies the control method. HESF-T-013 supports asynchronous serial communication between a variety of optical fiber connection, the communication distance can reach as far as 2 Km, the RS-232 signal transmission rate can be up to 115.2 Kbps. Different standards of the electrical interface can be mixed. There is no need of external power supply, it adopts the unique "RS-232 charge pump" driver, and get the power by initializing the 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), thus ensuring the program that written in RS-232 half-duplex mode, and provides excellent EMI/RFT characteristics.

HESF-T-013 supports two data signals: sending data and receiving data. RS-232 is connected through DB9 female interface, and fiber optic connection is connected through two ST interfaces, which is very convenient for disassembly and installation.