Non-blocking crossconnect apparatus
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United States of America Patent
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Jan 8, 2002
Grant Date -
N/A
app pub date -
Dec 31, 1997
filing date -
Dec 31, 1997
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Abstract
A non-blocking crossconnect apparatus includes a primary bi-directional crossconnect device and a plurality of secondary bi-directional crossconnect devices. The primary crossconnect device has a plurality of pairs of bi-directional signal ports. A first one of each of the plurality of pairs of the bi-directional signal ports are arranged in a first set and a corresponding second one of each of the plurality of pairs of the bi-directional signal ports are arranged in a second set. Each secondary crossconnect device is associated with a respective one of the plurality of pairs of bi-directional signal ports and has a pair of secondary bi-directional signal ports and a pair of bi-directional signal leads. A first one of each pair of the bi-directional signal leads is operably connected to a respective one of the bi-directional signal ports in the first set and a second one of each pair of the bi-directional signal leads is operably connected to a respective one of the bi-directional signal ports in the second set. By utilizing symmetry and the bi-directional nature of communication lines, the present invention yields a rearrangeably non-blocking crossconnect apparatus as well as a strictly non-blocking crossconnect apparatus.
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