2708339 Phoenix Contact FO Converter, Get a Quote

Phoenix Contact 2708339 – PSI-MOS-RS485W2/FO 850 E Fiber Optic Converter, In Stock

Buy the Phoenix Contact 2708339, a PSI-MOS-RS485W2/FO 850 E fiber optic converter with integrated optical diagnostics and alarm contact, for RS-485 2-wire bus systems (SUCONET K, Modbus) up to 500 kbps, NRZ coding, with one FO interface (BFOC) at 850 nm for PCF/fiberglass multimode cable. In stock and available for fast shipping. Get a quote today.

Key Technical Specifications

  • Product Type: FO (fiber optic) converter / media converter
  • Bus System Compatibility: RS-485 2-wire (SUCONET K, Modbus, and similar)
  • Data Rate: Up to 500 kbps
  • Coding: NRZ
  • FO Interface: 1x BFOC connector
  • Optical Wavelength: 850 nm
  • Fiber Type: PCF/fiberglass cable (multimode)
  • Diagnostics: Integrated optical diagnostics with floating alarm contact
  • Electrical Isolation: High-quality isolation between RS-485, fiber optic ports, power supply, and DIN rail connector
  • Hazardous Area Approval: Class I, Division 2, Groups A, B, C, D
  • Mounting: DIN rail

Design and Performance

Reliable RS-485-to-Fiber Signal Conversion

Converts electrical RS-485 2-wire bus signals into optical signals in a protocol-transparent manner, enabling point-to-point fiber optic links for legacy and industrial bus protocols like SUCONET K and Modbus.

Continuous Fiber Path Monitoring

Integrated optical diagnostics continuously monitor the fiber optic path both during installation and in ongoing operation, with a floating alarm contact that activates when the optical signal drops to a critical level — enabling proactive fault detection.

High-Integrity Electrical Isolation

Full isolation between the RS-485 interface, fiber optic ports, power supply, and DIN rail connector protects connected control systems from electrical noise, ground loops, and surge events.

Long-Distance, Interference-Free Communication

Fiber optic transmission at 850 nm extends bus communication distances well beyond typical copper RS-485 limits while remaining immune to electromagnetic interference common in industrial environments.

Rated for Hazardous Locations

Class I, Division 2, Groups A, B, C, D approval extends this converter’s use into potentially hazardous process areas, supporting reliable bus communication in demanding industrial facilities.

Why Buy the 2708339 From Us

  • In stock and ready for immediate dispatch
  • Fast shipping on every order
  • Commercial advisory support to help you confirm the right fiber optic conversion setup for your bus system
  • Competitive pricing — get a quote in minutes

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