Full Featured Ethernet Over Fiber Solution

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  • Rugged design - Extreme operating temperature rating
  • Fiber break alarm contact
  • Convenient LEDs for power, fiber, speed, and duplex status
  • Auto negotiate port speed and duplex settings
  • User friendly switch to manually set copper & fiber port speed
  • Link Fault Pass Through
  • Supports far end fault detection when used in pairs
  • Features Pass-Through mode for low latency applications
  • Auto MDI-X
  • Supports Singlemode and Multimode Fiber
  • Dual and single fiber models available
  • Extends network span up to 120KM over fiber
  • Redundant power Inputs
  • IEEE 802.1q VLAN traffic pass through
  • Made in USA

The RLH 10/100 Ethernet DIN Fiber Link system is a rugged, full featured media converter. It converts copper Ethernet to fiber, and may be used to extend a copper Ethernet network up to 74 miles (120km) over fiber optic cable.

This system is designed to transport critical communications where reliability is paramount. It is environmentally hardened to operate in a wide temperature range and is standards compliant. Advanced features include link fault pass thru, IEEE 802.1q VLAN pass thru, and the ability to configure the copper ports speed and duplex settings.

This Fiber Link system pairs up well with our industrial switch line where extending multiple Ethernet drops over fiber is required. Both dual and single fiber optics are available.


For a comprehensive review of the product specs, please see the Data Sheet, or feel free to contact us with any questions.

Transmission Method:
Frequency modulated light via two optical fibers

Multimode: 1310nm
Singlemode: 1310nm/1550nm

Single Fiber Connector Type/Distance:
Multimode: (62.5/125µm) 1.24 miles (2 km)
Singlemode: (9/125µm) 12.4mi /20km, 37mi / 60km

Dual Fiber Connector Fiber Type/Distance:
Multimode (62.5/125µm, 50/125µm): 1.24 miles/2km
Singlemode (9/125µm): up to 74.5mi/120km

Fiber Connector Type:
ST or SC

24~48VDC / 125VDC

Operating Temperature:
-40˚C ~ +70˚C (-40˚F ~ +158˚F)

10-100 Enhanced Ethernet Media Converter

Extend Ethernet to Multiple Locations

10-100 Enhanced Ethernet Media Converter

Point-to-Point Application


Download the RLH Data Sheet

Download the User Guide

  • Add -A to the end of the part number for 125VDC input power option
  • Single fiber models require an A side and B side unit for a complete system
  • Optic wavelength may be special ordered

Please submit a quote request or contact your RLH sales representative for pricing and delivery information.