The Subsea USB 50W system is based on the Unplugged inductive technology for transfer of electrical power and communication subsea. The 50W connector system is part of the complete "Subsea-USB" system covering power range from 50W to 3000W with communication speeds up to 1 Gbit/s.
In general, each Inductive system consists of a Primary (TX) and a Secondary (RX) side installed in a ROV friendly housing. The power is transferred from the Primary side to the Secondary side whilst communication is operated in full duplex.
The Subsea-USB Connectors can be configured in the following alternatives:
- Manually operated by hand
- ROV operated.
- Bulkhead piggy backed on other equipment.
- Combined with hydraulic connector thus allowing for electrical power, communication and hydraulic connections to be made up using the same connector assembly.
Input voltage 22-50VDC at primary side and 24VDC voltage output on the secondary side. The inductive coils are galvanically isolated from each other and can be looked at as a 1 to 1 transformer. The 50W system has 13-pin connector where both RS232, RS485 (230kbps), Ethernet (80Mbps) and Power are available on both sides. Feasible to have RS232 connected on the Secondary side (tool side) and RS485 connected on the primary side (ROV side). Most systems rated to 3000m water depth.
The system can be delivered in the following material types: Aluminium or Super duplex. It is recommended to always include the connector in the CP protection system and make sure it is in galvanic contact. Aluminium is designed for short-term (intervention) use. Super Duplex version has a design life of 3-5 years.