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Alarm systems. CCTV surveillance systems for use in security applications - Application guidelines Ingestion-build-221493 BS EN 755-4 is aAlarm systems CCTV surveillance systems for use in security applications Part 7: Application guidelines Executive summary Guidelines for ensuring performance of CCTV surveillance systems in security applications. Abstract This European Standard gives recommendations for the selection, planning and installation of closed circuit television systems comprising of camera(s) with monitor(s) and or video recorder(s), switching, control and ancillary