Sub-sea Float

The Sub-sea Float hovers at 1000 meters in depth. Made out of Syntactic foam by Flotation Technologies, it is designed to hold the lower riser afloat and act as a weak link. If the steel armored cable or OceanNet Buoy is caught by a large ship, the weak link will allow the buoy to disconnect at the Sub-sea float gracefully, preventing movement of the Sub-sea Junction box and preserving the fragile state of the ocean floor. With wet-mateable riser connections, the cable can be reattached with assistance from a remotely operated vehicle (ROV).

Sub-sea Junction Box

The pyramid shaped Sub-sea Junction Box with wet-mateable connectors acts as the anchor for the OceanNet buoy and can be deployed in depths > 10,000 fsw. The electronics Pressure Vessel (PV) is a 1 atmosphere titanium pressure vessel that houses the electronics needed to collect and convert the data from all of the sensors and equipment on the ocean bottom. The electronics PV can be removed from the enclosure via ROV intervention.

Mooring and Riser Components (MRC)

Cross sections of the OceanNet Buoy Mooring and Riser cable are shown. A steel armored section is used in the upper water column, while the Kevlar armored section is used between the sea floor and 1,000 meters depth. Both riser sections contain a common core consisting of fibers (for data transmission) and copper conductors (for power transmission to the sea floor). The mooring and riser are produced for OceanNet by JDR, the world's leading producer of undersea umbilicals.