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AssigneeAdtran, Inc.
InventorsLonnie S. McMillian, W. Stuart Venters, Michael Scott Sansom
Estimating the term…
A multi-circuit emulating line card is installable in a single line card slot of the backplane of digital switch, and is configured to emulate the functionality of each of a plurality of digital switch line cards, respectively associated with plural digital subscriber circuits served by the switch. In the course of emulating these plural line cards, the multi-circuit line card provides connectivity between each digital subscriber circuit and a digital carrier communication link to plural digital subscriber loop circuits, such as BRITE cards of a remote terminal site. The line card of the invention also includes network and subscriber circuit-associated metallic link impedance simulation circuits for terminating a metallic test bus.
In a digital switch associated with a first terminal site of a communication network, said digital switch being operative to provide connectivity between a plurality of digital subscriber circuits coupled thereto and a digital carrier communication link connected to a remote terminal site, said remote terminal site having a plurality of digital subscriber connection circuits serving respective digital subscriber loops connected thereto, the improvement comprising a multi-circuit line card installable in said digital switch and being configured to emulate a plurality of digital switch line card circuits, respectively associated with said plurality of digital subscriber circuits, and providing connectivity with each of said digital subscriber circuits and said digital carrier communication link to said plurality of circuits of said remote terminal site for providing digital communication service with said respective digital subscriber loops served thereby.
A multi-circuit line card adapted to be installed in a line card slot of a backplane of a digital switch, and being operative to replace a plurality of line cards that would otherwise be installed in respective line card slots of said backplane, said digital switch being associated with a first terminal site of a communication network and being operative to provide connectivity between a plurality of digital subscriber circuits coupled thereto and a digital carrier communication link connected to a remote terminal site, said multi-circuit line card comprising:
Dependencies are inferred from the claim text.