Jumper Setting - Smatlab 8 Relay output / Isolator Input Board

JP 1 Internal / External power selection

User may use jumpers to select external or internal power supply. When the input signal is non-power signal (e.g. Switch etc..), internal power is selected; user can select the PC bus power +12V or 5V. When the input is voltage or current, the external supplier is mean the signal itself that can adjust from +5V to +30V.
JP1 is used to select internal or external power supply of input channels. When JP1-2 is shorted, the PC bus +12V power is selected, when JP1-1 is shorted, the PC bus +5V power is selected. If we short JP1-3, then the external power supplier is selected.
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