Patent ID: 8665606

Claim:
An electronic device, comprising: an integrated circuit, comprising: a first signal processing circuit; a second signal processing circuit; and an interface multiplexer, having a first input port electrically connected to the first signal processing circuit, a second input port electrically connected to the second signal processing circuit, and an output port electrically connected to the first input port or the second input port; a circuit board, carrying the integrated circuit and comprising: a plurality of connector placement sites, including at least a first connector placement site and at least a second connector placement site, wherein the connector placement sites and the output port of the interface multiplexer are electrically connected in series; and a connector, installed on one of the connector placement sites, wherein when the connector is installed on the first connector placement site, the connector is connected to the first signal processing circuit only, and when the connector is installed on the second connector placement site, the connector is connected to the second signal processing circuit only.