Disclosed is a micro switch having a high capability of cutting off a direct current. An add-in components manager discovers one or more add-in components at the computer system are of a specified type of add-in component requested by an application. The second switching circuit has a third power switch and a fourth power switch. In the second mode, the reception station sets up a transmission stop duration based on the transmission rate specified by the transmission station. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.