Patent ID: 7472210

Claim:
A multiplexing device coupled to a first system port, a second system port, a first device port, and a second device port, the multiplexing device for coupling to a target device, the multiplexing device comprising: an active multiplexer coupled to the first system port, the second system port, and a multiplexed port; bypass circuitry coupled to the first system port, the second system port, a first bypass port, and a second bypass port; the multiplexing device operable so that: when the multiplexing device is coupled via one of the first device port and the second device port to a target device that is a single ported device: the bypass circuitry is deactivated and the active multiplexer is activated to multiplex been the first system port and the second system port, and the multiplexed port; the multiplexed port is coupled to the one of the first device port and the second device port; and when the multiplexing device is coupled via the first device port and the second device port to a target device that is a dual ported device: the active multiplexer is deactivated and the bypass circuitry is activated and the first bypass port and the second bypass port are coupled to the first device port and the second device port.