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Telephone line status indicator



Telephone line status indicator
It only monitors one phone line.

AVERAGE CURRENT WHEN FLASHING = 120uA PEAK LED CURRENT = 15mA 4mS PULSE 2 FLASHES/SEC APPROX. 6 MONTHS FLASHING FROM N-CELL
Authored by Dave Johnson at Homepage, Added: 22 Dec 2006



http://www.imagineeringezine.com/PDF-FILES/1phostat.pdf

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