Patent ID: 8384394
Filing Date: 2013-02-26
Classification: G01R,H05K

Abstract:
1. A communication apparatus comprising: a frame formed by a conductor; a transmission line connectable to a public line network and configured to transmit and receive a signal to and from the public line network in a state in which the transmission line is connected to the public line network; a print circuit board which includes a frame ground terminal portion electrically insulated from the transmission line and which is configured such that a dielectric strength between the transmission line and the frame ground terminal portion takes a specific value in a state in which a plurality of elements including a surge protection element are connected to between the transmission line and the frame ground terminal portion via a plurality of conductor patterns; wherein the frame ground terminal portion is brought into conduction with the frame by fixing of the print circuit board to the frame, wherein the frame ground terminal portion includes: wherein the frame and the print circuit board are configured such that the at least one first land and the at least one second land are brought into contact with the frame directly or via another conductor by fixing of the print circuit board to the frame.