General Dynamics Electric Boat already uses fiber to enable audio and data transport for use in a large-scale 24/7 emergency system at its shipyard in Groton, Connecticut. The Casualty Control (CASCON) System is mandated by the U.S. Navy to be operational during a submarine’s construction. Unsatisfied with the performance of its existing fiber transport equipment, however, the company sought another solution that would accommodate the unique signal types involved in this project — audio and RS data over multimode fiber — while improving signal integrity and overall system reliability. 

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