Patent ID: 7443789
Filing Date: 2008-10-28
Classification: H04J,H04L,H04Q

Abstract:
1. A protection switching mechanism comprising: a multiplexer having an input coupled to receive an input signal and a plurality of outputs to output a plurality of output signals; a transmission path for each output of the multiplexer, each transmission path coupled to receive an associated output signal from the multiplexer, the transmission paths further including one or more redundant transmission paths, wherein signals directed to a faulty transmission path are redirected to an associated redundant transmission path; a remote circuit to selectively switch a redundant transmission path for a faulty transmission path at a subscriber; a management unit coupled to control the multiplexer and the remote circuit, the management unit having a memory to store switching information; and wherein the transmission paths are selected into groups comprising a plurality of standard transmission paths and a redundant transmission path, wherein the redundant transmission path is selectively coupled to replace a faulty transmission path among the standard transmission paths.