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  • Conference on Optical Fiber Communication/International Conference on Integrated Optics and Optical Fiber Communication
  • 1993 OSA Technical Digest Series (Optica Publishing Group, 1993),
  • paper WG3
  • https://doi.org/10.1364/OFC.1993.WG3

Fiber-distributed-data-interface (FDDI) bypass switch for ruggedized applications

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Abstract

Designers of airborne and shipboard systems are increasingly specifying the use of the fiber distributed-data interface (FDDI) for next-generation platforms. FDDI represents a 100-Mbit/s, dual, counterrotating-ring local-area-network (LAN) standard that provides unprecedented fault tolerance, flexibility, and performance. Perhaps the most critical fault-tolerance component in the FDDI is the optical bypass switch. The bypass switch is required for operating in two states, ring join and bypass. In the ring-join state, power is applied to the bypass control interface, which permits a FDDI station to be coupled into the ring. When power is removed, the bypass must return to the bypass state, which causes the signal from the previous station to the next station in the ring to be directly routed to the subsequent station. Local loopback is also provided, which allows a station to fully test itself before being readmitted into the ring.

© 1993 Optical Society of America

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