How many devices can be used in a UPB system?
The UPB address space is a two dimensional array based on a Network ID number and a Unit ID number. The address space covers 250 networks per power transformer and 250 UPB devices per network. In a normal residential installation, the house would be assigned a single Network ID (analogous to a “house code” in X10 terminology), and the devices would then be assigned sequential Unit ID numbers from 1 to 250. Any device may communicate directly with other devices that share the same Network ID.
