H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 11/06 (2006.01) H04M 1/253 (2006.01) H04M 3/22 (2006.01) H04Q 11/04 (2006.01)
Patent
CA 2332705
A digital subscriber line access multiplexer overlay onto a digital loop carrier system for transporting high speed digital data over an existing backplane which carrier voice, data, and test signals, between voice line cards and a carrier line, the voice signals being time division multiplexed (TDM) into frames, the system comprising: a data bus interface for impressing the high speed data on a subset of existing backplane buses for transport along the backplane and for retrieving high speed digital data from the backplane buses; and a plurality of data line cards for connecting to the backplane and backplane subset conductors, the data line cards being adapted to couple the high seed data between the subscriber line and the backplane, whereby the high speed digital data can be routed over the backplane subset to any of the digital data line cards without interfering with the voice signals routed to voice line cards.
Isfan Allan
Weirich Andreas
Inc. Catena Networks Canada
Kirby Eades Gale Baker
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