RLH Smart Ethernet IO Now Supports DNPv3 Protocol

RLH’s latest release of its Smart Series line of Ethernet I/O products adds DNPv3 TCP Protocol support.

Celebrating 30 Years of Quality Fiber Optic Products

We are pleased to announce that RLH Industries, Inc. celebrated its 30th anniversary in February.

4 Wire Data Industrial Fiber Optic Media Converters

RLH is proud to announce three new 4 Wire Data industrial fiber optic media converters.

Meet the RLH Cable Configurator

Meet the RLH Cable Configurator.

Introducing the Power Over Fiber System (PoF)

RLH is pleased to announce significant updates to our Power over Fiber system (PoF).

Introducing the 4 Channel Contact Closure

RLH is pleased to announce our industrial 4 Channel Contact Closure Fiber Link System with SFP optics.