518

Model 518 is an advanced, eight-channel sensor measurement system on a PC/104 board. It generates excitation for passive sensors and provides complete signal conditioning for thermocouples, RTDs, thermistors, and strain and pressure gauges. Each channel can be individually configured to measure voltage, resistance, or any supported sensor type.

-12V power supply

My SBC does not provide -12V power to the PC/104 stack. Does the 518 require -12V power?

Yes, the 518 does require -12V, so your SBC must provide this operating voltage to it. SBCs usually have some sort of provision for this because the PC/104 specification mandates -12V (though SBC manufacturers sometimes omit it to save money and thus violate the spec).