US 12,332,832 B2
Universal serial bus (USB) backplane
Krishnamohan Botsa, Hyderabad (IN); and Shahid Ansari, Hyderabad (IN)
Assigned to Schneider Electric Systems USA, Inc., Foxborough, MA (US)
Filed by Schneider Electric Systems USA, Inc., Foxboro, MA (US)
Filed on Nov. 4, 2022, as Appl. No. 18/052,592.
Claims priority of application No. 202211054326 (IN), filed on Sep. 22, 2022.
Prior Publication US 2024/0104047 A1, Mar. 28, 2024
Int. Cl. G06F 13/42 (2006.01); G06F 13/38 (2006.01)
CPC G06F 13/4282 (2013.01) [G06F 13/382 (2013.01); G06F 2213/0042 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A high-speed scalable backplane system for enabling communications in an industrial system between a pair of redundant central processing unit (CPU) modules and a plurality of industrial system modules, the industrial system modules comprising field input/output (I/O) and/or communication modules, the high-speed scalable backplane comprising:
a root hub associated with the CPU module, the root hub having a host port and defining a first tier of a tiered architecture; and
a plurality of Universal Serial Bus (USB) hubs sequentially coupled to each other and arranged according to the tiered architecture, each of the USB hubs having an upstream port and a plurality of downstream ports, wherein the plurality of USB hubs comprises:
a pair of top USB hubs defining a second tier of the tiered architecture, wherein one of the top USB hubs comprises an active hub and another one of the top USB hubs comprises a standby hub, the top USB hubs each having an upstream port thereof coupled to the host port of the root hub and connected to one of the CPU modules via a host coupled to the host port; and
one or more pairs of lower USB hubs each defining a successive tier of the tiered architecture, the lower USB hubs each having an upstream port thereof coupled to a selected downstream port of one of the USB hubs in an immediately preceding tier of the tiered architecture, wherein each of the industrial system modules has a unique address value specified in a USB packet such that the lower USB hubs are each configured to enable a plurality of I/O and/or communications connections for the industrial system modules via a plurality of downstream ports thereof, and wherein the connections are scalable as a function of a number of the industrial system modules using the high-speed scalable backplane in the industrial system.