An electric connector for connecting a chip to a circuit board comprises an insulating body having an elastic buckle device extended from one side of the insulating body and an retaining buckle device extended from another side of the insulating body for positioning the chip to the electric connector; and a plurality of terminals. After a least one terminal is pressed properly and conducted with at least another one terminal, a PDA on the chip is connected with a chip on the PDA of the circuit board by a plurality of the terminals. The electric connector is used to facilitate several functions (such as signal transmission and removing static electrons) of a PDA on the circuit board so as to simplify the configuration of the circuit board and reduce manufacturing costs.


> Data converter apparatus and method, data transmission/reception apparatus and method, and network system

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