ABC embraces open systems and open protocols to allow our customers access to non-proprietary solutions through a vendor agno ... stic approach to BAS systems. We utilize a truly open platform, creating a sustainable foundation that supports and evolves with your building system’s life-cycle. ABC embraces open systems and open protocols to allow our customers access to non-proprietary solutions through a vendor agnostic approach to BAS systems. We utilize a truly open platform, creating a sustainable foundation that supports and evolves with your building system’s life-cycle. read more