| Pin Number |
Pin Name |
Description (may be empty) |
| Pin 1 | Ground | Says by itself... |
| Pin 2 | Mic Input | (or Audio +) |
| Pin 3 | +5v Bias | |
| Pin 4 | +5v Through 3k Ohm resistor |
These are for EV beltpacks only as each manufacturer has it's own pinout standards for ta4 connectors

