Opto-electronic vehicle & surface unit

Opto-electronic vehicle & surface unit

The Opto Electronic Vehicle Unit (OEVU) Mk 2 and Opto Electronic Surface Unit (OESU) Mk 2 are designed as a “matched pair” for implementation of the Double Eagle Mk II Mine Disposal Vehicle tether link. The function of the OEVU and OESU is to perform electrical to optical conversion for a fibre optic tether used for vehicle control and communications.

The OEVU Mk 2 is mounted in the vehicle using the same mounting arrangement as the original OEVU. Existing wiring can be connected with only minor modifications required. The OESU Mk 2 is mounted in the Console Electronics Unit and is form/fit/function compatible with the original OESU.

The OEVU/OESU Mk 2 system provides 3 video channels, 1 x RS232 channel and 1 x RS422 channel for the Double Eagle Mk II applications. Spare data and video channels are available for later upgrades and modifications.

Design and construction of the OEVU Mk 2 and OESU Mk 2 uses stainless steel, anodised aluminium and engineering plastics which are suitable for use in a marine environment. Particular care has been taken to improve the water resistance of the OEVU Mk 2 to prevent malfunction due to splashes of water when the vehicle penetrator is opened. The OEVU Mk 2 and OESU Mk 2 meet the requirements for MIL-S-901D shock qualification by extension.

Key Features

Up to 25-hour mission duration

Speeds up to 4.2 knots

Increased module payload capacity

Search and recovery


Deep sea mineral exploration

Marine & Fisheries research

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