The Fusion power supply has to be connected between your mains inlet and the main power supply which generates the usual +12V, -12V (and +5V) operation voltages for Eurorack modules. See manual.
For your own safety: If you are not sure how to do it and/or are not experienced with mains voltages, please consult an electrician!
2 input connectors for 220V mains voltage
2 connectors for passing mains voltage to main PSU
1 six-pole contact for grounding
8 six-pole-headers for connecting Fusion V1 modules' heaters
This item is discontinued or sold out and no longer available, please feel free to look for comparable new stuff in the following categories.