Bridge lifter circuit

Details Bridge lifter circuit Bridge lifter circuit

H - Electricity

04

M

379/45

H04M 13/00 (2006.01) H04Q 5/02 (2006.01)

Patent

CA 1170380

BRIDGE LIFTER CIRCUIT Abstract of the Disclosure The tip and ring leads of a tip party transmission facility are reversed before connecting the separate channel units for the tip and ring party channels to bridge lifters at the central office, thus permitting selective ringing. Tip party identification for billing is provided by a tip-party indicator inserted in the tip party transmission path at the central office by grounding the tip conductor when needed. The need for rewiring the tip party telephone set is then eliminated by providing separate single party channel units.

391200

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