Coin operated telephone operation monitoring switch mounting...

Details Coin operated telephone operation monitoring switch mounting... Coin operated telephone operation monitoring switch mounting...

H - Electricity

04

M

379/74

H04M 17/00 (2006.01) H04M 17/02 (2006.01)

Patent

CA 2004018

ABSTRACT An event monitoring system for payphones is described. Particularly, an arrangement for monitoring events such as the removal of the front cover, vault door and coin box is described. Sensors attached to brackets generate signals indicative of front cover, vault door and coin box removal are sensed by a monitoring circuit and sent to a central telephone office as appropriate. The brackets allow easy mounting of the sensors using existing payphone housing hardware, surfaces and cutouts. Consequently, this mounting arrangement may he used to retrofit standard payphones using only pre-existing mounting locations and holes to include event monitoring capability. The sensors and monitor circuit operate on low power and may be designed to operate in the absence of payphone power. - 18 -

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