Patent ID: 6038615
Filing Date: 2000-03-14
Classification: G06F,Y02D

Abstract:
An input/output switch device for use in an expansion device, said input/output switch device connecting to a plurality of electronic circuit networks and to a plurality of signal circuit networks having signal branch wires, said input/output switch device comprising:a plurality of transfer gates, each of said plurality of transfer gates having two input/output terminals and an open/close control terminal;said expansion device having a power supply section for supplying power to said input/output switch device and being connected to said signal circuit networks through connector including a pair of long pins that make initial contact at the time of insertion and are separated last of all at the time of removal, and a plurality of short pins that make contact after said long pins at the time of insertion, and are separated before said long pins at the time of removal whereby said power supply section being connected to a main power supply through said pair of long pins;whereby for each said transfer gate, one of said input/output terminal being connected to one of said plurality of signal branch wires through one of said plurality of short pins while the other input/output terminal is connected to one of said electronic circuit networks; and said open/close control terminal is connected to main power supply through a resistor.