发明名称 Connection device for the cradle mechanism in a telephone apparatus to prevent interferance between a primary apparatus and a secondary apparatus in a subscriber's installation
摘要 This invention concerns a connection device equipped with switches for the cradle mechanism in a telephone apparatus. The connection device is designed to prevent interferance between a primary apparatus, here called apparatus A, and a secondary apparatus, here called apparatus B, in a subscriber's installation. The invention is characterized by the connection device comprising a switch 7 which depending upon the position of the cradle of apparatus A keeps an incoming first line 1 either connected to the telephone receiver 5 of apparatus A or connected to apparatus B via a by-pass connection route 6 before the apparatus and by an incoming second line 2 being continuously connected to apparatus B or alternatively short-circuited to the first line after the receiver of apparatus A. The switch 7 consists of a mechanically-operating double-throw switch which is arranged in the by-pass connection route 6. <IMAGE>
申请公布号 SE461125(B) 申请公布日期 1990.01.08
申请号 SE19880004183 申请日期 1988.11.18
申请人 TELEVERKET 发明人 L *BROGER
分类号 H04M1/68;H04M1/72 主分类号 H04M1/68
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