29 Years of Excellence

RLH Industries, Inc. designs, engineers, and manufactures fiber optic links and fiber optic products, equipment, enclosures, cable and supplies for the telecommunications, networking, power, automation and control, and general commercial industries.

Featured Products

Why choose RLH?

29 Years of Excellence

RLH Industries has been an innovator and driving force in the fiber optic industry since 1988.

Lifetime Warranty

Our warranties are a reflection of our commitment to manufacturing the highest quality products.

Expert Support

At RLH, we are not only committed to giving you great products & services, but also a great experience.

Product Overview

Fiber Link Systems

RLH Fiber Link Card Systems are industrial copper-to-fiber media converters that have been deployed by service providers and utility companies.

RLH Contact Closures

RLH Fiber Link DIN mount Systems are stand-alone copper-to-fiber media converters designed to meet the demands of critical networks in harsh industrial environments.

RLH iMux Multiplexer System

The iMux is a powerful fiber optic modular multiplexer capable of providing up to 16 channels of T1, RS-232, analog phone FXO/FXS, and 4 wire analog data.

RLH Ethernet Switches

RLH Industries hardened Ethernet switches included, Gigabit, Unmanaged, Managed, and Power-over-Ethernet (PoE/PoE+).

Smart IP Monitor

RLH Smart Series products enable comprehensive access and control via Ethernet of remote digital I/O via its Web Interface, Modbus TCP, SNMP, or DNP3 protocols.

RLH Fiber Optic Cable

RLH fiber cable assemblies and distribution equipment offer a complete solution for fiber deployment from a single source.

RLH Cabinet

RLH has a full line of outdoor cabinet and pedestal enclosures for telecommunication equipment which provide secure and reliable protection from outdoor environments.

RLH Power Supplies

RLH manufactures AC/DC power supplies, DC/DC converters, Solar and battery backup systems to meet a variety of telecommunications industry applications.

RLH Fiber Optic Accessories

RLH offers unique and necessary accessory products which complement our products lines and allow for professional installations.


Utilities Technology CouncilAtis Protection Engineers Group (peg)IEEE Pes GroupGPR Engineering ServicesAFCEASmart Electric Power AllianceCWEA

RLH Industries
RLH Industries - Fiber Optic Link