J/RS232 Series

Stand-alone RS232 Media Converter
RS232 Copper to Fiber

  • J-RS232-Series-768x768
  • J-RS232-CF-01-SC
  • J-RS232-TF-01-SC

Link a remote terminal to a host computer: Connect multiple devices, such as security scanners, POS devices, remote terminals and building access/alarming systems to a host computer. Ideal for campus or business environments where remote devices can be networked in a point-to-point configuration where distances are greater than the 15 meter limitation of conventional copper serial cables.

Lantronix’s serial RS232 to Fiber Media Converter is an inexpensive way to extend the distance between serial connections with the use of fiber optic cable. This converter supports full or half-duplex data transmission at speeds up to 120 Kbps. Unit and Port LEDs allow for quick status information on the converter.

J/RS232 Series

Related Products

    J/RS232 Series Overview


    • Offered with either a male or female connector
    • Full/Half-duplex transmission at speeds up to 120 Kbps
    • Fiber LED lights to show link with or without data transmission

    J/RS232 Series Tech Specs


      • EIA/TIA-574
      • EIA/TIA RS-232E

      Data Rate

      • Up to 120 Kbps

      Status LEDs

      • PWR (Power): Lit for normal operation
      • RX: Steady = Link;
      • Flashing = Rx Data
      • FL: Steady = Fiber Link


      • Width: 3″ [76 mm]
      • Depth: 3.9” [100 mm]
      • Height: 1″ [25 mm]

      Power Consumption

      • 3.0 Watts

      Power Supply

      • External AC/DC; 12 VDC, 0.5A min Output; 120-240VAC input


      • Operating: 0°C to 50°C
      • Storage: -40°C to +85°C
      • Humidity: 5% to 95% (non-condensing)
      • Altitude: 0 – 10,000 ft.


      • 2 lbs. [0.90 kg]


      • 49,000 hours (MIL217F2 V5.0) (MIL-HDBK-217F)
      • 129,000 hours (Bellcore7 V5.0)


      • Safety: Wall Mount Power Supply: UL Listed and CSA certified
      • Emissions: CISPR22/EN55022 Class A + EN55024, EN60950 Class A, FCC Class A, CE Mark


      • Lifetime

    J/RS232 Series Resources

    Application Spotlights
    Press Releases
    Case Studies

    J/RS232 Series Downloads

    Note: Some Documentation may have Transition Networks named or pictured. Transition Networks was acquired by Lantronix in August 2021. Learn more about the acquisition here.

    J/RS232 Series Part Numbers

    J/RS232-CF-01(SC) J/RS232 Series

    DB-9 (female) [15 m/49 ft.] to 1300nm multimode (SC) [2 km/1.2 mi.] Link Budget: 11.0 dB

    J/RS232-TF-01(SC) J/RS232 Series

    DB-9 (male) [15 m/49 ft.] to 1300nm multimode (SC) [2 km/1.2 mi.] Link Budget: 11.0 dB

    Lantronix Part # Name Description Order Now

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