... to ground.Insulation resistancePut 500Vdcvoltage on input and output terminal for 1 minute, test resistance>7MΩOver loadEnter into hiccup mode ... ,0% ~ 93%RH without CondensationVibrationamplitude 0.35mm, vibrate 10 circles in direction of X,Y,Z, frequency 10-55HzSafetyStandardUL60950,EN60950-1 ... .1uf & 47uf parallel capacitor. Active POE injectors(56V0.6A) used for computer workstations