首页>
外国专利>
Telephone subscriber station supplied through connecting lines - has resistor connected to rectifier during speaking, which is disconnected during dialling
Telephone subscriber station supplied through connecting lines - has resistor connected to rectifier during speaking, which is disconnected during dialling
展开▼
机译:通过连接线提供的电话用户站-通话时电阻连接到整流器,拨号时断开
展开▼
页面导航
摘要
著录项
相似文献
摘要
The telephone dialling unit has only three connection points, supplied through a full-wave rectifier. The dialling unit (K) is supplied through a double bridge rectifier (D1-D6) with two bridge arms (D1, D2) common for both bridges (D1, D4; D1, D2, D5, D6) and an additional resistor (R) is provided in one of the connections. The bridge is operated by a dialling contact (nsa) during speaking with the resistor (R), and during dialling without the resistor. The dialling contact (nsa) is in series with the terminal connector (S2) connected to the speech circuit (SS).
展开▼