Publisher's Synopsis
Electrical power and/or data are distributed to one or more electrical devices, preferably mounted on a structure. A first source module is electrically connected to an electrical power and/or data source. Additional source modules are connected in a daisy chain to the first source module. A plurality of system modules is mounted on the source modules. Each system module is electrically connectable to, and disconnectable from, a module connector of a respective source module. Each system module is removable from the respective source module for replacement without powering down the power and/or data source, and without affecting the data distribution.
