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Electrical Substation-Rated 10/100/1000 Mbps Media Converter


Example of Electrical Substation-Rated 10/100/1000 Mbps Media Converter

Availability: Worldwide

PDF Datasheet: en  




DIN Rail


-40 º to +85 ºC








Made in the USA




The ComNet RLMCSFP Series is a substation-rated and industrially hardened Ethernet media converter. Designed to the requirements of IEC 61850-3, IEEE 1613 Class 2, EN50155, and NEMA TS-1/TS-2, it is intended for deployment in environments where high levels of electromagnetic noise and interference (EMI) and severe voltage transients and surges are routinely encountered, such as electrical utility substations and switchyards, heavy manufacturing facilities, trackside and roadside electronic equipment, and other difficult out-of-plant applications. The DIP-switch-selectable 100BASE-FX or 1000BASE-FX port supports optical transmission media with selection of the appropriate ComNet SFP module. User-selectable link fault pass-through provides remote indication of a network fault, and a summary fault alarm provides a local or remote indication via a dry contact closure in the event of loss of optical link or operating power. The 10/100/1000BASE-TX port supports both auto-negotiation and automatic MDI/MDI-X crossover for full and half-duplex operation; manual MDI/MDI-X switching is not required.
The internal/self-contained 12 to 24 VDC or 48 VDC power supply features redundant power inputs for the highest possible reliability. A high voltage AC/DC option is also available. The simple to install, plug-and-play RLMCSFP is DIN-rail or panel-mountable, and is ideal for mission-critical applications where very high levels of reliability and network availability are of the utmost importance.

Features for RLMCSFP Series

  • Environmentally hardened for deployment in difficult unconditioned out-of-plant installations: Extended ambient operating temperature range of -40˚ C to +85˚ C. Conformal coating is optionally available for humidity with condensation or airborne particulate matter environments
  • Link fault pass-through provides a remote indication of a network fault
  • 12 to 24 VDC, 48 VDC or HV AC/DC (88 to 300 VDC/85-264 VAC) operating power options
  • Internal/self-contained high-reliability power supply eliminates the need for an external power supply, and a screw terminal block connects directly to the power source for permanent, reliable, and maintenance-free operation
  • 12 to 24VDC and 48 VDC input power supply versions feature redundant power inputs, for extremely high levels of reliability and availability
  • Status indicating LEDs provide rapid indication of critical operating parameters.
  • Designed to the requirements of IEC 61850-3 and IEEE 1613 Class 2 for electrical utility substations, EN50155 and EN50121-4 for railway applications, and NEMA TS-1/TS-2 for traffic signal control equipment, and IEC/EN60950-1
  • Rugged 19-gauge galvanized and powder-coated steel enclosure.
  • Summary fault alarm provides a local or remote indication via a dry contact closure in the event of loss of optical link or operating power
  • No fans or forced-air cooling; cooling via natural convection eliminates unreliable and troublesome fans/moving parts, with no periodic maintenance requirements.
  • Uses customer-installed ComNet SFPs for compatibility with a wide range of optical fibers, optical connector types, and optical transmission distances (SFPs ordered separately).
  • Electric Port Supports Auto-negotiation for Full Duplex or Half Duplex Data Throughput
  • Designed for wall or DIN rail mount installations


  • Electrical substation automation & SCADA networks, protective relaying systems, and distribution automation
  • Power transmission & distribution systems, remote wind farm, hydroelectric, and solar/photovoltaic power generation facilities, and other electrical utility-specific applications
  • Perimeter security, surveillance monitoring, and controlled access to electrical substations and power generating facilities, and other high-value, mission-critical sites
  • Industrial/Factory Automation & Process Control SCADA Networks
  • Chemical and petrochemical refining and processing facilities, oil and gas pipelines/transmission systems, and mining installations
  • Food processing operations
  • Wastewater treatment plants
  • ITS/Transportation Traffic Signalization & Surveillance/Incident Detection Networks
  • Railway/trackside control and monitoring systems
  • Integrated IP-Video, VOIP, and Data Transmission Networks
  • Cellular telephony and wireless backhaul networks

RLMCSFP Series Ordering Information

Part NumberDescription
RLMCSFP/24DCElectrical Substation-Rated 10/100/1000 Mbps Media Converter, redundant 12 to 24 VDC inputs, SFP Optical Port
RLMCSFP/48DCElectrical Substation-Rated 10/100/1000 Mbps Media Converter, redundant 48 VDC inputs, SFP Optical Port
RLMCSFP/HVElectrical Substation-Rated 10/100/1000 Mbps Media Converter, 85 to 264 VAC / 88 to 300 VDC input, SFP Optical Port

* Small Form-Factor Pluggable Module. Sold Separately.