Every An-10 device within a system uses a number of different address codes that identify its place within that system and how it interacts with other devices.
A Building Code is used to identify devices that form part of the same overall system. This allows An-10 sys- tems in adjacent buildings to be completely independent and prevents cross-system interference.
A Local Code typically defines all devices in a specific location
For example, the switch plates, sensors and dimmers in one room may all share the same Local Code so that only the devices in that room are controlled and do not affect, or are affected by, devices in other rooms. An optional Sub Local Code can also be used to further subdivide devices within a room if required.
One or more Area Codes will allow common control across multiple locations. Typical applications of Area Codes include 'corridor hold' schemes.