The course objective is to prepare students for completion of the Second Year Installer/Technician Bundle. This bundle is a combination of the following courses: Orientation, Level II; AC Theory; Installer/Technician Power Quality; Installer/Technician Telephony; Installer/Technician Paging Systems; Installer/Technician Security Systems; Installer/Technician Local Area Networks; Installer/Technician Code 2; Fire Alarm; Grounding and Test Instruments. This course is intended to provide a basic understanding of paging systems, background music, and PA systems, their fundamental components, and how these systems work. It explores power quality and data performance issues on the load-side of the meter, looking at grounding and bonding as well as ground-loop problems and their causes. Students will be introduced to access control systems and their components and applications. They will identify the transition from individual telephones to electromechanical key systems to the application of electronic key systems. Common electrical measurements are introduced with an overview of the measurement principles and test instrument procedures required.