SYSTEM FOR TRANSMITTING DATA ALONG WIRES OF BROADCASTING Russian patent published in 1995 - IPC

FIELD: communication engineering. SUBSTANCE: system has data transmitter 1, data receiver 2, two-wire line 3, user's line 4, amplifier 5, transformer 6, complex resistors 7 and 8, resistor 9, address code receiver 10, contacts 11 of controlled relay 12. Device may have according to variant of description of the invention of clause 2, threshold element 13, additional controlled commutator 14 provided with switching contact 15 and signal converter 16. Systems provide two-side communication among users of common electric communication system by means of simple means with low power losses of signals transmitted. EFFECT: improved efficiency; improved reliability of operation. 2 cl, 1 dwg