The Mercury driver integrates one or more IP-based EP1501 Mercury Panels into a NiagaraAX station. Data items in the Mercury access control system and the station are exchanged via Mercury proxy points under Mercury devices (panels), using SSL encrypted connections. Niagara station-sourced alarms can be configured for monitoring and acknowledgement by the Mercury system.

The driver uses a familiar NiagaraAX driver hierarchy of a single parent network, one or more devices, where each device has proxy points. One atypical difference is that each Mercury device (panel) has its own poll scheduler, which may be used by the Mercury proxy points for that panel. Device polling is the default method for updating proxy point status, but asynchronous event notification using the driver’s Event Listener is also possible.