User's Manual

Output

15 GND Ground Ground -

Microphone Jack

Pin NO Pin Name Description Specification I/O Remake

1 MBL Backlight of Microphone - O

2 DC+13.6V DC Power Output 13.8±15% O

3 GND Ground Ground -

4 PTT/TXD0 PTT/PC Serial Data 3.3V TTL I

5 ME MIC Ground MIC Ground -

6 MIC MIC Signal Input 600Ω I

7 HOOK/RXD0 HOOK/PC Serial Data 3.3V TTL I

8 DM MIC Data Detection High Impedance I/O

Speaker Jack(3.5mm Phone Jack) 4Watt/4Ω

Pin NO Pin Name Description Specification I/O Remake

1 SPO

External Speaker Output

4Watt/4Ω O

2 GND Ground Ground O

DC Input Power Connector

Pin NO Pin Name Description Specification I/O Remake

Red DC+13.6V DC Power Output 13.8±15% I

Black GND Ground Ground I

Antenna Connector

Impedance is 50