- TL;DR Summary
- I’m trying to understand the basics of the wiring inside the battery pack of my scooter. It uses a standard 3 pin XLR port, but I’m not sure why the negative pin is not attached to a wire. From my research on forums like this one, I gather that the negative wire can be attached to the ground pin (pin 1), because the return path is somehow synonymous with zero reference level.
Is zero reference level synonymous with the return path of a current, i.e., the negative wire? If so, where a ZRL is being used by a circuit, is the ground pin and the negative pin in a XLR port the same thing?