Optical: systems and elements – Prism – With reflecting surface
Patent
1994-06-30
1997-01-21
An, Meng-Ai T.
Optical: systems and elements
Prism
With reflecting surface
395311, 395280, 359117, 359135, 36492792, 36492799, 364238, 3642382, 3642391, 364DIG1, 370359, 370419, G06F 300
Patent
active
055967302
ABSTRACT:
An incoming interface for a cross-connect system comprises a first selector for coupling a signal from an incoming link to an STS-1 receive processor or to the first input of a second selector. A demapping circuit is connected to the STS-1 receive processor for extracting a DS3 payload signal and supplying it to the second input of the second selector. A DS3 receive processor is connected to the output of the second selector for processing a DS3 signal. A third selector has a first input connected to the STS-1 receive processor and a second input connected to the DS3 receive processor for establishing a connection between its first or second input to a cross-connect switch. An outgoing interface for the cross-connect system includes a DS3 transmit processor for processing a DS3 signal from the cross-connect switch. A third selector connects the output of DS3 transmit processor to a mapping circuit or one input of a sixth selector. A fifth selector has a first input for receiving an STS-1 signal from the cross-connect switch and a second input connected to the mapping circuit for establishing a connection between one of its first and second inputs to an STS-1 transmit processor. The other input of the sixth selector is connected to the STS-1 transmit processor for coupling one of its inputs to a corresponding outgoing link.
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An Meng-Ai T.
NEC Corporation
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