The PT2003-A1 provides one microphone input. This microphone input is used for the handheld microphone.
Microphone input connector Mic In - 'X3'
Pin | Description | Remark |
|---|---|---|
1 | PTT | Push to the talk button |
2 | Signal - | - |
3 | GND | GND reference voltage |
4 | Signal + | - |