HORNER HE-X4A - Page 9

Safety and Compliance
12. Use caution when connecting controllers to PCs via serial or USB. PCs, especially laptops may use “floating
power supplies” that are ungrounded. This could cause a damaging voltage potential between the laptop and
controller. Ensure the controller and laptop are grounded for maximum protection. Consider using a USB isol-
ator due to voltage potential differences as a preventative measure.
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