A fibre optic multiplexer (MUX) transmits multiple data streams — video, Ethernet, serial communications, and control signals — through a single optical fibre. In ROV and subsea survey operations, this reduces umbilical complexity, simplifies system integration, and allows multiple sensors and cameras to operate simultaneously over a single communication link.
Unique Group supplies fibre optic multiplexers for observation-class and work-class ROV operations, offshore survey spreads, inspection programmes, and deepwater deployments. Equipment is available for sale and rental worldwide.
Speak with our survey specialists to discuss your project requirements.
What Is a Fibre Optic Multiplexer?
A fibre optic multiplexer is a subsea telemetry device that combines multiple input signals and transmits them over a single fibre optic cable. At the receiving end, the signals are separated back into individual data streams — a process called demultiplexing.
In offshore and subsea applications, multiplexers typically support combinations of HD video, standard video, Ethernet, serial communication, and control signals. The use of a single fibre link reduces the number of conductors required within an ROV umbilical, lowers system weight, and simplifies topside and subsea interfacing.
Selecting the Right Fibre Optic Multiplexer
The right MUX for a given deployment depends on several factors:
ROV class and sensor payload. Observation-class ROVs typically require fewer channels and compact, lightweight units. Work-class systems supporting multibeam sonar, USBL, HD cameras, and multiple control interfaces require higher channel counts and broader signal type support.
Signal types required. Not all multiplexers support the same interfaces. Confirm that the unit handles the specific combination of Ethernet, serial, video, and control signals your system requires.
Depth rating. Subsea housing pressure ratings vary between units. Match the depth rating to your maximum operational depth.
Integration. Units designed for plug-and-play integration reduce mobilisation time on deck and simplify connection to existing survey equipment and ROV platforms.
Fibre Optic Multiplexers Available from Unique Group
Unique Group supplies a range of fibre optic multiplexers to support ROV and subsea survey operations across a variety of project scales and environments.
Uni-Mux Deeplink6 — Unique Group’s own-engineered subsea fibre optic multiplexer, designed for ROV and offshore survey systems requiring high-bandwidth, multi-signal integration over a single fibre link.
Innova Matrix Mk II+ — A standalone fibre optic multiplexer and control solution with an on-screen channel status display. The atmospheric subsea unit is rated to 3,000 MSW. Supports a wide range of sensors and equipment via a plug-and-play topside rack-mounted interface. Available for sale and rental.
Innova Micro Matrix — A compact multiplexer designed for systems where size and weight are a consideration. Suited to smaller ROV platforms requiring multi-channel data transmission without the footprint of larger units.
All products are available globally. Contact our survey specialists to confirm availability, rental lead times, or to discuss integration requirements for your specific system.