This board allows the customer to evaluate the features of the HI-8427, a galvanically isolated, 6-channel ground/open sensor with adjustable threshold levels. It is designed to provide up to +- 400V isolation between the sense lines and the logic interface. All sense inputs can withstand MIL-STD-704 power transients. In Standard Mode sense inputs are lightning protected to RTCA/DO-160G, Section 22 Pin Injection Test Waveform Set AZ (3 & 4), Set BZ (3 & 5A) and Set ZZ (3 & 5B) without any external components. The HI-8427 is powered from a 28V VREF supply and a 1.8V to 3.3V VDD supply for the logic side. Test signals can be applied and monitored using the test points.
