Backplane architecture for providing both loop repeater and multiplexed mode connectivity in the same equipment shelf

摘要

To provide either or both multiplexed and non-multiplexed (loop repeater) mode communications in the same equipment shelf between a network and plural subscriber circuits, a multi-mode backplane architecture includes a network interface multiplexer that provides time division multiplexed signal connectivity and point-to-point multiplexed signal connectivity between the network and line circuit access modules, to which the subscriber circuits are selectively ported. Each of a plurality of non-multiplexed interface connectors is configured for external connection to non-multiplexed communication links of the network and non-multiplexed communication links of the subscriber circuits. A plurality of access module card slots receive line circuit access modules that are individually programmable to provide a selected one of a plurality of diverse modes of telecommunication connectivity between the network and a subscriber circuit. The line circuit access modules have input/output multiplexers that selectively provide connectivity between its signal processor line and signal paths of the network interface multiplexer, and signal paths of a plurality of point-to-point communication ports of non-multiplexed interface connectors.