Industrial Multi-Mode Serial to Fiber Link Media Converter RS-232 / RS-422 / RS-485

  • RS-232/RS-422/RS-485 interfaces
  • Small Form Factor – Reduced footprint size
  • Complete Kit – includes converter, AC power supply if needed, and DB-9 Cable
  • ST Fiber Connectors
  • Opto Isolation
  • Lightning Protection
  • Signal flow is automatically identified and transparently transmitted
  • High gain optical transceiver module to ensure the transmission distance and quality
  • The baud rate automatically adapts without changing the user protocol.
  • Industrial design, all surface mount technology, extended MTBF
  • 850nm – fiber optic frequency
  • CE, FCC, UL, NEMA TS2 / IEEE1613 / IEC61000-6-5 (IEC61850-3)
  • UL, CE, FCC, IEEE, IEC, ITUT, NEMA, Substation & Digital Substation, Switchgear
  • IEEE 61850-3 Used in Electrical Substations & Distribution
  • IEEE 1613 Used in Electrical Substations & Distribution
  • EN50155 Used in Railway & Transportation
  • EN50121-4 Used in Railway & Transportation
  • NEMA TS-2 – Used in Traffic Signal Control Systems



The primary functionality of the DY-5844MA-ST Serial Link (photoelectric / fiber converter) is to realize the photoelectric conversion of RS-232/RS-422/RS-485 signals. This series of products realizes long-distance transmission through RS-232 or RS-485 or RS-422 through optical fiber. Optical fiber converters use optical fiber as the transmission medium, having the advantages of isolation high voltage, anti-electromagnetic interference, and anti-lightning. Widely used in various industrial controls, distributed data acquisition and other applications. The devices are especially suitable for power system automation, traffic control and switch gear.


Additional information

Weight 0.3 kg
Dimensions 18 × 4 × 15 cm