Access Control System, the portion of the system managed by the Mercury panel.

Building Automation System. the portion of the system managed by the NiagaraAX station.

A happening or occurrence brought about by a device state. Event notification occurs when the device state that sets a property to “true” causes a message to be sent to another system.

See Mercury panel.

Multiple Mercury EP1501 panels connected via Ethernet and managed from a security computer.

The EP1501 controller board manufactured by Mercury Security Corporation. This Ethernet-ready card reader panel controls a single opening. It is also referred to as a Mercury device.

Physical Security Interoperability Alliance: a global consortium of physical security manufacturers and systems integrators that provide IP-enabled security devices to industry. The alliance develops and promotes the open industry protocol used by Mercury security products and supported by the NiagaraAX Mercury driver.

This XML-based protocol partitions security applications into a set of domains. A portion of the protocol provides access control (how intrusion would work). Another portion provides support for portals (doors).