Method and apparatus for digital subscriber line access...

Details Method and apparatus for digital subscriber line access... Method and apparatus for digital subscriber line access...

2006-10-03

2006-10-03

Pham, Chi (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S217000, C370S420000, C379S399010

Reexamination Certificate

active

07116674

ABSTRACT:
An architecture for stacking DSLAMs employs a master DSLAM having a control circuit and an uplink communication circuit to a central office and two LVDS circuits for communication with two DSLAM boxes in adjacent circuit interconnection to the master DSLAM. Multiple slave DSLAMs each having a programmable control circuit and two LVDS circuits for communication with two DSLAM boxes immediately adjacent on either side in the circuit are connected in a ring or split stack arrangement. A control circuit in the master selectively programs the control circuits in each slave DSLAM to control the direction of communication in the LVDS circuits as round robin in a first selected mode and a split in a second selected mode to accommodate the desired structure.

REFERENCES:
patent: 6680904 (2004-01-01), Kaplan et al.
patent: 6801533 (2004-10-01), Barkley
patent: 6822944 (2004-11-01), Mantin
patent: 2002/0172273 (2002-11-01), Baker et al.

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