Understanding Control, Energy, and Electrical Architecture A Kraken Power Technical White Paper Foreword & Glossary of Terms Modern fire apparatus electrical systems are becoming increasingly complex. Terms such as multiplexing, onboard power, idle reduction, and energy management are often used interchangeably in industry discussions, specifications, and marketing materials—despite referring to fundamentally different systems. This white paper is intended to clarify these distinctions and provide an educational framework for understanding complete fire apparatus electrical system design, including energy generation, storage, distribution, control, and safety. Glossary (NFPA 1900–aligned where applicable) Executive Summary Fire apparatus multiplexing has become increasingly common over the past decade and is now standardized at