Fiber Optic Interconnects For The IBM System/390

Casimer DeCusatis, Allen Huffman, George DeMario, and Daniel Stigliani

In the past year, IBM announced the System/390™ family of mainframe computers. Along with many other performance enhancements, this system was among the first in the computer industry to use fiber optic I/O channels for high speed data transfer. Known as ESCON (Enterprise Systems Connection)™ Channels, these optical links provide significantly higher bandwidth, data rates, and distance than the parallel electrical cables they replace.

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