UOTEK Serial to Fiber Converter RS-232 RS-422 RS-485 to Fiber Optic Modem RS422 RS485 RS232 Serial Media Converter Adapter UT-277SM-ST

• Single-mode communication distance up to 20 km.
• Support RS-232, RS-422 and RS-485 asynchronous communication protocols
• It supports asynchronous RS-232, RS-485, RS-422 communication interface, which is the best choice for connecting remote terminal unit (RTU) to host computer (HOST) or distributed data acquisition system (SCADA) controller.
• Optional SC, FC, ST interfaces are available.This is ST interface. If you need other interface types, please contact our customer service.
• Supports 2-wire (half-duplex) and 4-wire (full-duplex) RS-485 operation

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Overview
●UT-277 is a multi-functional fiber optic MODEM supporting asynchronous RS-232, RS-485, RS-422 communication interfaces, which is the best choice for connecting remote terminal unit (RTU) to host computer (HOST) or distributed data acquisition system (SCADA) controller.
●UT-277 RS-485 way to support data (TXD or SD) to send control, thus improving the ability to adapt to various types of software, but also simplifies the control mode.
●Fiber optic MODEM support asynchronous serial port between a variety of fiber optic connection, it supports two asynchronous serial port devices through the fiber optic full-duplex or half-duplex communication, communication distance up to 4 km multi-mode, single-mode 20 km.

Specification
● Simultaneous use of RS-232, RS-422 and RS-485 interfaces
● Supports master-slave mode
● Slave mode can be used as repeater

Original Packing Including
●1×RS232/422/485 to Fiber Optic Converter
●1×User manual
●1×Power Plug