It controls the installation and, amongst other functions, memorises the number and name assigned to zones or groups in a zone. It controls the operation of the modules included in the processor and the functions that depend on them and initialises the Millennium installation each time it receives power. Front RJ45 socket for the 1202 control console. Front LED indicators displaying: ON / OFF (green) and condition of wires 9 and 90. Rear 15 V— power connector. Rear 14-way male flat cable connector for the audio programs + intercom bus. 15 Rear plug-in strips. Rear 20-way male flat cable connector for the audio source bus. Rear plug-in terminal connector for the 9-file general bus (not balanced) or 14-file general bus (balanced). Only one module allowed per installation.