Security alarm system having minimal wiring to CCTV camera

Details Security alarm system having minimal wiring to CCTV camera Security alarm system having minimal wiring to CCTV camera

2008-05-13

2008-05-13

Lee, Benjamin C. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S568200, C340S568300, C340S568400, C348S152000

Reexamination Certificate

active

11392344

ABSTRACT:
A security alarm system includes a camera, an alarm control panel, a mixer at the camera, a signal processor at or associated with the alarm control panel, and a single cable comprising only two operative conductors extending between the mixer and the signal processor. The cable provides current to the camera via the mixer and provides a tamper circuit as well as conveying video signals to the signal processor.

REFERENCES:
patent: 2003/0132843 (2003-07-01), Ho Lee

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