optical cross-connect


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optical cross-connect

A network device used by telecom carriers to switch high-speed optical signals (OC-3, OC-12, OC-48, etc.). It differs from a digital cross-connect in that it deals with multiple high-speed signals that are switched in their entirety and not multiplexed together.

Also known as "OXCs," optical cross-connects work entirely at the optical layer and may be able to operate without having to convert to electrical and back again. Tellium, Inc., a Bellcore spin-off acquired by Zhone Technologies (www.zhone.com) in 2003, introduced the first optical cross-connect in 1998. See digital cross-connect.
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The 8-dimension (80 waves per dimension) optical cross-connect prototype implements a free cross-connect of 640 x 640 waves.
The 12-channel parallel fiber transmitter and receiver pair is designed for use in applications such as board-to-board, rack-to-rack, and bay-to-bay links in optical cross-connect switches, terabit routers, VSR equipment, and high-speed computers.
A new generation of managed optical cross-connect systems route huge volumes of network traffic, while adapting dynamically to changing traffic patterns and customer needs.

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