Patent ID: 7158696
Filing Date: 2007-01-02
Classification: H04J,H04L,H04Q

Abstract:
1. An optical switch device, comprising: a switch fabric; a plurality of input ports through which incoming data contained in a bearer signal passes to the switch fabric; a plurality of output ports through which outgoing data passes from the switch fabric; a demultiplexing device coupled to at least one of the plurality of input ports for injecting an optical connection verification signal into the switch fabric; a signal generator coupled to the demultiplexing device for injecting the connection verification signal into the switch fabric at a frequency that is different from a frequency of the bearer signal; a multiplexing device coupled to at least one of the plurality of output ports; a first signal analyzer coupled to the multiplexing device for analyzing the data injected by the signal generator; a second signal analyzer coupled to the multiplexing device and a multiplexer coupled between the first and second analyzers and the multiplexing device; and wherein at least one of said first signal analyzer and said second signal analyzer determines a bit error rate for said optical connection verification signal.