Honeywell 900P01 - 0501 120 / 240VAC , 60W Power Supply Module , In Stock Power Supply The 900P01 Power Supply, shown in Figure 10, provides 5 Vdc and 24 Vdc to the backplane connectors in the local and remote racks. Power Supply is used in each Controller Rack, I/O expansion racks and for all rack versions (4-slot, 8-slot, and 12-Slot). The P01 power supply provides 5VDC and 24VDC to satisfy the power requirements of a rack with a controller and local I/O, a rack with a