Industrial Compact RS-232/422/485 To Fiber Converter, Multi-Mode 2KM, SC Connector, -40°C ~ 70°C



The STF-401C series Compact Industrial Serial-to-Fiber Media Converter Series provides a solution to extend any RS-232 or RS-422/485 serial device data transmission distance with 100Fx Fiber (SC or ST connector) options via Multi-Mode in 2Km or Single-Mode in 30Km. It features a Din-Rail Type design to give users an easy installation and maintenance purpose in any harsh industrial environments.

A perfect solution for any single “Point-to-Point” applications with

  • Industrial manufacturing in Factory Automation;
  • Remote sensing and signaling/metering in ITS;
  • EMI resistant for IEDs data transmission in Substation Automation;
  • Industrial Control in Process Control Automation, such as WWTP and Oil/Gas/Mining


  • Fan-less and Din-Rail design for Harsh Industrial Environment
  • Built in 1Port RS-232(DB9) or RS-422/485(Terminal Block) Serial Port
  • Supports SC or ST Multi-mode 2Km, Single-mode 30Km
  • Dip Switch to Change RS-485 Data Signals Pull High/Low Resistor
  • Supports Input Voltage 9 ~ 48VDC
  • Supports Reverse Polarity Protection
  • Wide Range Operating Temperature Supports: -40 to 70°C
  • Applicable with Point-to-Point, Half Duplex Single Ring Topology Serial Fiber Daisy Chain Network application
  • 5-Year Warranty