The solar cell module of this invention reduces water reaching to a front surface glass in using a rear surface member of a resin film so as to suppress sodium deposited from the front surface glass from reaching to the front surface of the solar cell element. Termination networks are provided coupling generic input buffers to respective ones of the pair of opposite polarity signals for receiving out of band signals where the opposite polarity signals are placed at voltages so that the differential voltage between them is below a threshold voltage. Other embodiments are described and claimed. The interaction of the hollow cathode discharge plasma with inner walls of the hollow cathode is controlled and the inner walls should have a temperature below its melting point, whereby the inner walls can provide a catalytic effect. The insulation feed rate is controlled in response to the air flow pressure between the blower and feeder. A touch detection circuit is electrically connected to the connection ends of the plurality of conductive lines through a connection circuit, so as to detect variations of the equivalent resistances and the equivalent capacitances of the plurality of conductive lines.