StellaratorTM Is a 485 bus distribution device which can support up to 24 AC powered actuators and 14 485 bus devices. For small system of up to 24 shades an in-line 24V at 1A bus power supply or passive PoE injector is the only power input required. For large systems of up to 192 shades we recommend using one of our Tokamak TM hubs or you can still use up to 8 of the bus power supplies.