Global Marine completes repeater installation


 
Image: Lagos shore end landing/Global Marine Systems

Global Marine Systems has just completed a major fiber optic installation project in the Gulf of Guinea. 

This telecommunications project for customer Huawei Marine Networks (HMN), a Global Marine joint venture partner, will be the first installation of the R2 repeater following successful sea trials, which took place on Cable Innovator in November 2014.

The project saw the installation of a 1011km repeatered fiber optic subsea cable system installed between Lagos in Nigeria and Kribi in Cameroon. It also encompassed a branching unit, for future connection, to Escravos and Qua Iboe in Nigeria’s southeast region.

Project activities included PLGR (post lay grapnel run) and route clearance, surface lay, cable burial, the supply and installation of pipeline crossing protection, PLIB (post lay inspection burial), and direct shore ends. Global Marine’s CS Sovereign, a multi-role DPS-2 vessel, capable of performing a diverse range of offshore engineering activities, undertook the project. Earlier this year, CS Sovereign successfully completed a platform-to-platform fiber optic system installation in the North Sea for oil and gas communications specialist Tampnet, complete with a Cable End Module (CEM) deployment.

A highlight of the project was the first deployment of HMN’s second-generation RPT 1660 R2 repeater. Which provides an optical loop back facility for performance monitoring and accurate fault location. The upgraded product supports up to six fiber pairs and incorporates a 4x4 pump redundancy architecture.  The new design, with its slim-line profile allows for simultaneous lay and burial of the product, increasing the efficiency of the installation process.

Global Marine Systems provides engineering and underwater services. In September 2014, Global Marine was acquired by HC2 Holdings.

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