PMM - Power Meter Monitor


RS485/RS422/RS232 - Fiber converter


  • Dual or single converter in one package to save space and wiring
  • 1x Fiber optic port
  • Transmission Speed of up to 256 kbps
  • ESD Protection for the RS-232/422/485 Data Line
  • Isolated power supply option
  • Wide range of power supply options
  • Meets all power substation requirements
  • Din Rail, wall mount, panel mount and rack mount options
  • Compact size with fanless design
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PMM0503 is a RS-232/422/485 to fiber media converter. It is used for RS-232/422 point-to-point connections and RS-485 multi-drop applications for transmitting a signal up to 2 km (6,600 ft) and is the perfect solution for applications where transmission must be protected from electrical exposure, surges, lightning or chemical corrosion.

PMM0503 industrial grade media converter can function under harsh environmental conditions of any site. It is especially designed to meet all power substations and PV plants requirements. Furthermore, it covers all field standards of power, reliability, easy configuration and long-lasting life.

This device can be ordered with multiple power supply ratings to select from. Check the ordering tab for available options that meets your requirement.


PMM0503 can perform efficiently and effectively in the PV, substation and industrial applications as:

  • RS485 - Fiber Converter
  • RS422 - Fiber Converter
  • RS232 - Fiber Converter

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