(connect to pin 2 for TX)
Important:
Never ground pin 7 or damage to the regulator will occur.
| 8 pin Modular | Pin | Signal |
|---|---|---|
|
| 1 | Tone |
| 2 | Common Ground | |
| 3 | CPU Clock | |
| 4 | Control (212 schematic shows sp?) | |
| 5 | Mic Audio | |
| 6 | PTT (connect to pin 2 for TX) | |
| 7 | +7.5v (212 user manual, schematics for both models show 5v!) | |
| 8 | Data in from microphone. |