H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 1/14 (2006.01) H04L 12/56 (2006.01) H04L 12/66 (2006.01) H04L 29/12 (2006.01) H04M 1/738 (2006.01) H04M 11/06 (2006.01) H04Q 1/02 (2006.01) H04Q 1/18 (2006.01) H05K 7/18 (2006.01)
Patent
CA 2444419
An architecture, as well as various components, of an asynchronous transfer mode (ATM) subscriber access multiplexer (ASAM) system can be implemented using an xDSL (x-Digital Subscriber Line) using DMT (Discrete Multitone) or CAP (Carrierless Amplitude Phase Modulation) between a plurality of subscribers and a corresponding plurality of line termination equipment in a shelf that also includes network termination equipment for connection to an ATM network. The line termination and network termination equipment are interconnected by a bus internal to the shelf for providing subscriber access. Separate lowpass filters are provided at each end of a twisted wire pair between the shelf and each subscriber equipment. A shelf can be used as a hub for connecting to a remote shelf that includes the line termination equipment for connection to subscribers. Although the internal bus of the shelf is shown in a nonredundant embodiment, an increased level of equipment protection can be provided by placing one half of a redundant equipment pair in one shelf and the other half in the other shelf and sharing network termination equipment between such shelves.
Bailey Richard Haywood
Boeykens Eduard Christian Maria
Borowski Emmanuel Frans
Czerwiec Richard Marion
de Wulf Koen Ambroise Godelieve
Alcatel
Robic
LandOfFree
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