A cable distribution plant is protected from noise where a modem housing encloses a switching power supply and digital electronics, the modem switching power supply for receiving AC mains power via an EMI filter and modem digital electronics for receiving a switching power supply output via an LC filter for filtering noise at the switching power supply frequency wherein multiple filters used with respective modems at subscriber sites protect the head-end from switching power supply harmonic noise otherwise aggregated by the nodes and passed to the head end.

It is aimed to suppress water intrusion into an internal accommodation space for accommodating a ferrite and the adhesion of water to a male terminal by providing a sealing member. A connector (10) includes an inner housing (16), an outer housing 14 including a rear receptacle (30) into which the inner housing (16) is fit, and ferrites (12) including ferrite-side insertion holes (48) through which busbars (18) are inserted. The ferrites (12) are accommodated into internal accommodation spaces (S) formed inside by the inner housing (16) and the rear receptacle (30) in a fit state. A sealing member (20) is sandwiched between the rear receptacle (30) and the inner housing (16) to suppress water intrusion into the internal accommodation spaces (S).

It is aimed to suppress water intrusion into an internal accommodation space for accommodating a ferrite and the adhesion of water to a male terminal by providing a sealing member. A connector (10) includes an inner housing (16), an outer housing 14 including a rear receptacle (30) into which the inner housing (16) is fit, and ferrites (12) including ferrite-side insertion holes (48) through which busbars (18) are inserted. The ferrites (12) are accommodated into internal accommodation spaces (S) formed inside by the inner housing (16) and the rear receptacle (30) in a fit state. A sealing member (20) is sandwiched between the rear receptacle (30) and the inner housing (16) to suppress water intrusion into the internal accommodation spaces (S).

A connector 110 is provided with a plurality of ferrites 114 and a housing 116 including a plurality of accommodating portions 139 capable of individually accommodating the plurality of ferrites 114 from a first direction. The plurality of accommodating portions 139 are disposed side by side in a second direction intersecting the first direction. Two intermediate walls 138 are disposed between the accommodating portions 139 adjacent in the second direction with a space S defined therebetween in a third direction intersecting the first and second directions.

A connector 110 is provided with a plurality of ferrites 114 and a housing 116 including a plurality of accommodating portions 139 capable of individually accommodating the plurality of ferrites 114 from a first direction. The plurality of accommodating portions 139 are disposed side by side in a second direction intersecting the first direction. Two intermediate walls 138 are disposed between the accommodating portions 139 adjacent in the second direction with a space S defined therebetween in a third direction intersecting the first and second directions.

A connector includes a housing formed with a L-shape in a side view having a connection portion capable of fitting to a mating connector, a terminal mounted on the housing by inserting a connection terminal portion into a terminal accommodation portion of the connection portion, an electric wire connected to the electric wire of the terminal and led out from the housing, a ferrite core mounted on the electric wire and assembled from the rear side of the housing, and a cover mounted on the rear surface of the housing and covering the terminal and the ferrite core. The cover includes a recessed portion, which receives an end portion of the ferrite core inclined by an external impact, on a facing surface facing the ferrite core assembled to the housing.

A connector includes a housing that has a L-shape in a side view and in which a connection portion capable fitting to the mating connector is projected, a terminal having a connection terminal portion and an electric wire connection portion and mounted to the housing by inserting the connection terminal portion into a terminal accommodation portion formed in the connection portion, an electric wire connected to the electric wire connection portion of the terminal and led out from the housing, a ferrite core mounted to the electric wire and accommodated in the housing. The housing includes a rib formed along an extending direction of the connection portion, and a hole portion formed at a root portion of the rib.

It is aimed to suppress water intrusion into an internal accommodation space for accommodating a ferrite and the adhesion of water to a male terminal by providing a sealing member. A connector (10) includes an inner housing (16), an outer housing 14 including a rear receptacle (30) into which the inner housing (16) is fit, and ferrites (12) including ferrite-side insertion holes (48) through which busbars (18) are inserted. The ferrites (12) are accommodated into internal accommodation spaces (S) formed inside by the inner housing (16) and the rear receptacle (30) in a fit state. A sealing member (20) is sandwiched between the rear receptacle (30) and the inner housing (16) to suppress water intrusion into the internal accommodation spaces (S).

It is aimed to suppress water intrusion into an internal accommodation space for accommodating a ferrite and the adhesion of water to a male terminal by providing a sealing member. A connector (10) includes an inner housing (16), an outer housing 14 including a rear receptacle (30) into which the inner housing (16) is fit, and ferrites (12) including ferrite-side insertion holes (48) through which busbars (18) are inserted. The ferrites (12) are accommodated into internal accommodation spaces (S) formed inside by the inner housing (16) and the rear receptacle (30) in a fit state. A sealing member (20) is sandwiched between the rear receptacle (30) and the inner housing (16) to suppress water intrusion into the internal accommodation spaces (S).

A noise filter including a conductor and an annular core. The conductor has a wound portion. The annular core is formed of a magnetic material and passes through the wound portion. The annular core is formed of a pair of split cores that are assembled together with joining surfaces on both ends to be joined to each other. At least one of a recess portion and a projection portion that engage with each other is formed on the joining surfaces of the split cores which are joined to each other.