Dial inbound meter interface unit which uses two elements for co

Details Dial inbound meter interface unit which uses two elements for co Dial inbound meter interface unit which uses two elements for co

1996-07-08

1998-09-29

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Remote indication over telephone line

H04M 1100

Patent

active

058155589

ABSTRACT:
The invention is a dial inbound MIU which includes only two elements, a transformer and an optoisolator, to couple timing and power signals to the meter whose data is being measured and to retrieve data from the meter.

REFERENCES:
patent: 5204896 (1993-04-01), Oliver
patent: 5454031 (1995-09-01), Gray et al.

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