Abstract: An information processing apparatus includes a communication apparatus and a different communication apparatus connected to the communication apparatus via a plurality of transmission paths. The communication apparatus includes a transmitting unit and a control unit. In response to designation of a transmission path targeted for diagnosis, selected amongst the transmission paths while the communication apparatus is in a state capable of data communication with the different communication apparatus using the transmission paths, the transmitting unit transmits a test signal to the targeted transmission path while the state capable of data communication with the different communication apparatus is maintained using remaining transmission paths of the transmission paths other than the targeted transmission path.

Abstract: An information processing apparatus includes a communication apparatus and a different communication apparatus connected to the communication apparatus via a plurality of transmission paths. The communication apparatus includes a transmitting unit and a control unit. In response to designation of a transmission path targeted for diagnosis, selected amongst the transmission paths while the communication apparatus is in a state capable of data communication with the different communication apparatus using the transmission paths, the transmitting unit transmits a test signal to the targeted transmission path while the state capable of data communication with the different communication apparatus is maintained using remaining transmission paths of the transmission paths other than the targeted transmission path.

Abstract: An information processing apparatus includes: an interface unit that communicates with another device through a plurality of physical links; a setting unit that determines a value of a setting parameter for setting a signal transmission characteristic for each of the plurality of physical links by performing a negotiation with the other device and that outputs a plurality of determined values of the setting parameter, each of the plurality of determined values corresponding to one of the plurality of physical links; and a judgment unit that judges whether each of the plurality of determined values is correct or not by judging whether or not a difference between a maximum value and a minimum value among the plurality of determined values falls within a predetermined range.

Abstract: A power supply apparatus includes a first electric accumulator, a second electric accumulator, and a control section which controls charge and discharge of the first electric accumulator and the second electric accumulator. When the control section does not carry out a degradation diagnosis of the first electric accumulator, the control section charges the first electric accumulator and makes the second electric accumulator discharge. When the control section carries out the degradation diagnosis of the first electric accumulator, the control section charges the second electric accumulator and then makes the first electric accumulator begin to discharge for the degradation diagnosis.

Abstract: An information processing apparatus includes: an interface unit that communicates with another device through a plurality of physical links; a setting unit that determines a value of a setting parameter for setting a signal transmission characteristic for each of the plurality of physical links by performing a negotiation with the other device and that outputs a plurality of determined values of the setting parameter, each of the plurality of determined values corresponding to one of the plurality of physical links; and a judgment unit that judges whether each of the plurality of determined values is correct or not by judging whether or not a difference between a maximum value and a minimum value among the plurality of determined values falls within a predetermined range.

Abstract: A power supply apparatus includes a first electric accumulator, a second electric accumulator, and a control section which controls charge and discharge of the first electric accumulator and the second electric accumulator. When the control section does not carry out a degradation diagnosis of the first electric accumulator, the control section charges the first electric accumulator and makes the second electric accumulator discharge. When the control section carries out the degradation diagnosis of the first electric accumulator, the control section charges the second electric accumulator and then makes the first electric accumulator begin to discharge for the degradation diagnosis.