A Building Automation (BA) management system gives building managers better control over resources, improving operational efficiency and reducing costs in the control room. With today's data communication technology and sophisticated computer software, an intelligent building can be managed and monitored from a central location with a computerized building management system.

The company mentioned here uses a PC and MOXA CP-134U-I V2 or CP-132UL-I V2 to develop automatic air conditioning control systems, elevator controllers, entrance controls, and fire alarm systems. Both boards have an RS-422/485 interface. A common problem with many applications is ground loop currents that flow through the ground line when ground voltage levels differ between connected devices. To eliminate this problem, both boards are available with 2000V of Optical Isolation Protection. The building manager can easily monitor and control each air conditioner via communication links between the air conditioners and MOXA CP-134U-I V2 or CP-132UL-I V2.