Abstract: A connector with cap includes a connector body and a cap formed of a plastic material that has plasticity before being cured and that cures under a predetermined condition, the cap being cured in a state where the cap is removably closing an opening of the connector body located on a side on which a mating connector is fitted. The connector with cap further includes a protective member formed of an insulating material and arranged inside the connector body on a side of the opening such that the protective member is positioned between the cap and the connector terminal, the protective member being configured to protect the connector terminal from contacting the plastic material.

Abstract: The present invention is to provide a connector connection apparatus to avoid drop of a connector without increase of cost. The connector connection apparatus includes a holder for receiving therein and holding the connector, a receiving portion main body for receiving therein and holding the holder, and a plate for fixing the holder attached to the receiving portion main body. The receiving portion main body includes a receiving hole having a diameter larger than an outer diameter of the holder and receiving the holder therein. The holder is inserted from an upper opening of the receiving hole into the receiving portion main body. The holder is then held between the plate and the receiving portion main body.

Abstract: A network abnormality recovery method and system capable of recovering the normal state of a network communication function as soon as possible even if the network communication function is impaired. When it is determined that a network communication function is impaired because a broken line occurs on a main data transmission line or an abnormal condition occurs in a communication IC, a CPU of a station unit transmits network maintaining information required for maintaining the network communication function to another CPU of a master station unit over a sub data transmission line provided separately from the main data transmission line, thereby recovering the normal state of the network communication function as soon as possible.

Abstract: An input sensor voltage is stepped up to a predetermined sensor voltage by a step-up single power supply circuit 30. The voltage thus stepped up is supplied to a first differential amplifier circuit 40, a first current buffer 50 and a constant voltage circuit 60. Either first or second transistor in the first current buffer 50 is turned on in accordance with a voltage difference across a Hall element 3 provided in a gap in a magnetic core of a coil 1. A current proportionate to a voltage from the first differential amplifier circuit 40 is output from the output terminal of the first current buffer 50 through a secondary winding 1c, a resistor RL and the constant voltage circuit 60 in the direction opposite to that of the current in a primary winding 1b to balance a magnetic flux in the coil 1. The constant voltage circuit 60 maintains a voltage at its output at a reference voltage.