Multiplex communications – Fault recovery
Reexamination Certificate
2004-09-03
2008-11-11
Pham, Chi H. (Department: 2616)
Multiplex communications
Fault recovery
C370S367000, C370S386000
Reexamination Certificate
active
07450494
ABSTRACT:
A reconfigurable apparatus providing 1:N redundancy and 1:1 redundancy for high speed broadband interfaces with 1+1 and 1:N Automatic protection Switching (APS), is presented. The apparatus includes a mini-midplane having a redundant slot, a plurality of active slots and capable of communication with a gateway. The mini-midplane includes at least one set of cross-coupled APS lines for implementing 1:1 equipment redundancy for high speed broadband interfaces with 1+1/1:N APS and a plurality of point-to-point traces between redundant slot and each of the active slots for implementing 1:N equipment redundancy for high speed broadband interfaces with 1+1/1:N APS. The mini-midplane may further include a plurality of shared traces between the redundant slot and said at least one active slot for implementing 1:N equipment protection for low speed narrowband interfaces. The apparatus further comprises a redundant back card inserted in the redundant slot and in communication with the mini-midplane, and a plurality of back cards, wherein a respective one of the plurality of back cards are inserted in a respective active slot, each of the back cards in communication with mini-midplane.
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Edamula Rajesh
Elg Cedric
Kapahi Reetesh
Koroth Santosh Kuzhumiyil
Koyuncuoglu Akin
BainwoodHuang
Cisco Technology Inc.
Hyun Soon D.
Pham Chi H.
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