Coin signaling system

Details Coin signaling system Coin signaling system

H - Electricity

04

M

379/36

H04M 17/02 (2006.01)

Patent

CA 1145078

Brolin-24 26 COIN SIGNALING SYSTEM Abstract of the Disclosure A subscriber loop carrier system is shown in which coin first and dial tone first pay stations can be serviced through the carrier system without modifying the central office. Coin supervisory states are detected at the central office terminal of the system, translated into unique cyclic codes for transmission through the system and detected at the remote terminal by reapplication of the coin supervisory states at the remote terminal. Coin first and dial tone first modes of operation are accommodated with simple option plugs.

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