METHOD AND DEVICE FOR CHANNEL TAPPING Russian patent published in 2002 - IPC

FIELD: electric communications; transit distributing devices. SUBSTANCE: device has receiving and transmitting regenerators of forward and backward channels and tapping unit incorporating control subunit, synchronizing subunit, and series-connected demultiplexer, delay subunit, data change subunit, and switch. As an alternative device may have code converter in the form of descrambler and group subscriber line signal shaper in the form of scrambler. EFFECT: provision for tapping several channels to subscriber terminals. 10 cl, 3 dwg