XLR3
From HwB
The EIA RS-297-A standard defines how XLR3 is used for audio. XLR connectors origin is the Cannon X series connector, XLR=Cannon X Series, Latch, Rubber.
Pinout
/---\ | | |2 1| Male solder side | 3 | \---/
/---\ | | |1 2| Female solder side | 3 | \---/
| Pin | Description |
|---|---|
| 1 | Chassis ground (cable shield) |
| 2 | Normal polarity ("hot") |
| 3 | Inverted polarity ("cold") |