CIRCUIT LIMITED LEVEL OF TAXATION PULSE.

摘要

A circuit for limiting the level of metering pulses (gi) in frequency outside the voice band and arriving in an annex PBX (KS) via a telephone line (ASL) to two son, the metering pulses (IM) and the voice signals transmitted via the telephone line (ASL) is routed via the PBX annex (KS) for analog transmission terminal stations connected (KE), characterized in that, in one of two son (AD) of the line telephone (ASL), is included a blocking filter (SF) blocking the metering pulses (IM), in that the barrier filter (SF) is bridged by two loops filters (DF) connected in series and passing the metering pulses (gi), and in that two diodes (D) are connected in antiparallel fashion between the other wire (DA) of the telephone line (ASL) and the connection point of the two loops filters (OF ).