Quarry House Leeds, UK

Quarry House is the Northern HQ for the Departments of Health, Work & Pensions and was equipped with a Delmatic proprietary-protocol control system in 1992.  A plug-in upgrade in 2007 transformed the fifteen year-old field-programmable system into a full computer-addressable scheme.  
 
The original proprietary communications protocol has been replaced with the open Lon protocol (paving the way for integration with other services in the future) while the upgrade cards were provided “Dali-enabled” to allow for the future replacement of luminaires with Dali fittings.