Hang T Tran

7450494, Nov 11, 2008

Sep 3, 2004

10/934268

Akin Koyuncuoglu - Santa Clara CA, US
Biju Raghavan Nair - Sunnyvale CA, US
Cedric Elg - Gilroy CA, US
Hang Tran - San Jose CA, US
Rajesh Edamula - Santa Clara CA, US
Reetesh Kapahi - Karnataka, IN
Santosh Kuzhumiyil Koroth - Santa Clara CA, US

Cisco Technology, Inc. - San Jose CA

G01R 31/08
H04L 12/66

370216, 370367, 370386

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.

7643290, Jan 5, 2010

Jul 23, 2008

12/178060

Susheela N. Narasimhan - Milpitas CA, US
Hang Tran - San Jose CA, US
Branimir Tasic - Menlo Park CA, US
John Borg - Boxborough MA, US
Wingo Cheong - San Jose CA, US
Nguyen Nguyen - San Jose CA, US

Cisco Technology, Inc. - San Jose CA

H05K 7/20

361690, 361695, 361697, 361724, 361727, 454184

An electronic system includes a chassis defining a substantially plane-shaped cavity. The chassis is arranged to contain an air stream (e. g. , provided by a cooling subsystem) which flows from an air intake side of the chassis to an air exhaust side of the chassis through the substantially plane-shaped cavity. The air intake side of the chassis is opposite the air exhaust side of the chassis. The electronic system further includes a jacket circuit board disposed within the plane-shaped cavity, and a set of pluggable electronic modules. The jacket circuit board is oriented within the plane-shaped cavity to receive cooling from the air stream. Each pluggable electronic module is arranged to (i) electronically connect to the jacket circuit board through a front of the chassis and (ii) define a supplemental ventilation port through which air passes to augment the air stream.