The USIM-8 is a cost effective solution for applications that used to require individual isolation cards for every drive in a system. The USIM-8 provides 8 independently isolated output channels, allowing for control of 8 drives. Daisy chaining the USIM-8 with other USIM-8 increases the number of total drives you can control with 1 master signal. Power by 115 VAC or 230 VAC, the USIM-8 uses individual transformers to isolate any voltage within a 0 to 250 VDC range or a 4-20 mA signal, and scale it into a 0-10 VDC output.