US 12,471,237 B2
Secure computer rack power supply testing
Thomas Rudolph Eanes, Jr., Bluemont, VA (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Aug. 24, 2023, as Appl. No. 18/237,664.
Prior Publication US 2025/0071929 A1, Feb. 27, 2025
Int. Cl. H05K 7/14 (2006.01); G01R 31/40 (2020.01)
CPC H05K 7/1492 (2013.01) [G01R 31/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device, comprising:
an electrically insulative housing defining a display area;
a connector configured to couple to a corresponding connector of a high-power computer rack supply lead that includes multiple conductors comprising a power conductor, a neutral conductor, and a ground conductor;
a set of multiple voltmeters positioned on the display area, individual voltmeters dedicated to an individual pair of conductors of the high-power computer rack supply lead and configured to display a numeric test voltage relating to the individual pair of conductors simultaneously to other voltmeters of the set displaying numeric test voltages relating to other pairs of individual conductors; and,
a single pole double throw switch positioned on the display area and having an output pole electrically coupled to the ground conductor through an individual voltmeter and having a first input pole electrically coupled to the power conductor and a second input pole electrically coupled to the neutral conductor, the single pole double throw switch biased to a first closed position on the first input pole to display test voltages between the power conductor and the ground conductor on the individual voltmeter and configured to display test voltages between the neutral conductor and the ground conductor on the individual voltmeter in a second closed position.