DISPOSITION STRUCTURE OF FERRITE CORE FOR NOISE REDUCTION

摘要

PROBLEM TO BE SOLVED: To provide a disposition structure of a ferrite core for noise reduction, capable of solving problems such as noise emission from a connector pin group exposed to a back surface of a back board, in a connection structure of a connector pin group provided on a back surface of a sub-rack with an external cable connector. SOLUTION: An adaptor 22 is provided with a plurality of holes fitting to a plurality of connector pins 20 projecting from a back surface of a back board 11 of a sub-rack and assists the connection of an external cable connector to the connector pins by being removably engaged with and fixed to an engaged part provided on the back surface of the back board. A ferrite core 50 for noise reduction is disposed so as to cover middle parts of the connector pins situated in a gap formed between the back surface of the back board and the adaptor when the adaptor is engaged with the engaged part to fit end parts of the connector pins into the plurality of holes provided in the adaptor.