Parallel telephone blocker. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Parallel telephone blocker. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Telephony

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The circuit disables the parallel telephone when the handset is lifted or the modem is used. It is installed on a blocked telephone set or in its line.

When installing, you must observe the polarity of the inclusion, otherwise the phone will be permanently connected to the line.

Parallel telephone blocker. Scheme of blocker of parallel TA

Author: Mukhamadullin Arturuz; Publication: cxem.net

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