Unplug the connector under water with the help of a ROV manipulator or diver, and plug with the other end. The main design is that the needle core at the underwater end is a hole, which is filled with oil and connected with the built-in pressure compensator. The oil insulates the needle core and the needle core from the external water. In the process of insertion and extraction, it is also insulated to ensure that the needle core does not leak or short circuit.

The connector can work for 25 years in a row, underwater operating depth of 7000 meters, the working voltage of 1.0 kVac / 1.8 kVdc, working current 30 a, insulation resistance 10 g kVdc Ω @ 1 or higher.

It is mainly used in seabed monitoring network, seabed workstation, seabed observation network, underwater petroleum production system, etc.