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these were integrated, then it could be arranged that the HVAC and Lighting turn on only when the
access control system shows someone to be inside a room, floor or building.

Figure 9 – Example of an IBMS
Photo credit: Cisco
If all of these are brought under a single umbrella, such a system is known as an Integrated Building
Management System (IBMS). Such as a centralized system will enable real time centralized
monitoring and control of Infrastructure systems such as building systems (HVAC equipment,
Thermostats, Lighting, Life Safety & Security Systems, Physical Security, Elevators, Meters – Energy,
Water and Gas, Sewer etc.). It will be a comprehensive, standards based, communications network‐
based solution for intelligent building automation and enterprise management.
Using advanced software tools, the IBMS provides a smart building the long term capabilities
needed to save costs, efficiently manage and optimize building operations and ensure long term
sustainability.

7.4.1 Combining Multiple Systems
Typically, an IBMS can monitor and manage every data point from every building system. The
integration of all the data points of all the building subsystems relatively new and has great potential
to monitor and manage a building’s performance.

As an example, in the San Francisco Public Utility Commission building, the systems monitored and
managed by the IBMS include:

 Elevators
 Waste Water Treatment System
 Mechanical Direct Digital Controls
 Digital Network Lighting Controls
 Power Monitoring and Control System

 Fire Alarm and Detection System
 Solar Energy Collector Metering
 Wind Energy Power Generator Metering

490 ITU‐T's Technical Reports and Specifications