Profile: RLH Industries, Inc. designs, engineers and manufactures fiber optic links and fiber optic products, equipment, enclosures, & cable & supplies for the telecommunications, power, & general commercial industries. Our products include card housings & rack, cabinets & pedestals, power supplies, multiplexers and test equipment. Our power supplies contain AC/DC power supplies, DC/DC converters, power insertion, solar and battery packs. Our services include installation, engineering/consulting, and GPR engineering services.