This reports this power module's DC output voltage in units of 0.1V, so a reported value of 480 means 48.0 volts, a figure directly used by connected equipment and other modules sharing the same output bus. In a paralleled-module power system, all modules feeding the same bus need to output very close to the same voltage or load sharing between them becomes uneven, with the higher-voltage module carrying a disproportionate share of the load. An admin noticing one module's reading consistently at 485, 48.5V, while its bus-mates read 480, 48.0V, would flag that module for recalibration since it's likely shouldering more than its fair share of the connected load.