UT-2077 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 way 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. UT-2077 supports asynchronous serial communication between a variety of optical fiber connection, the communication distance can reach as far as multimode 2 km, the RS-232 signal transmission rate can be up to 115.2 KBPS. Different standards of the electrical interface can be mixed used. There is no need of external power supply, it adopts the unique "RS-232 charge pump" drive, 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.

UT-2077 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.

• Multi-mode working distance: 2KM
• Supports point-to-point or loop(point-to-multipoint) connection
• Supports RS-232 asynchronous communication protocol
• Baud rate: 300-115.2Kbps
• ST fiber interface

>>Specification

Supports RS-232/ST interface

Asynchronous transmission: point-to-point, 115.200bps

Transmission distance: multi-mode 2,000m

Operation temperature: -25℃ to 70℃, relative humidity 5% to 95%

Working wavelength 820nm (multi-mode)

Interface

RS-232: DB9 female

Fiber: ST interface (with optional other interfaces)

RS-232 interface feature: standard RS-232 3 wire, ±15KV ESD protection, baudrate can be up to 115.2kbps, no need external power, powered by the RS-232 port.