Accessory Interface; Power Interface; Audio Interface; Sim Card Interface - SimCom EVB Kit User Manual

3. Accessory Interface

3.1 Power Interface

Pin Signal
1 Adapter input

3.2 Audio Interface

Headset interface:
Pin Signal
1 MICN
2 SPKN
3 SPKP
4 MICP

3.3 SIM Card Interface

SIMCard holder 1(J202) is the main holder, SIM2(J203) is for special module which supports dual sim.

3.4 USB Interface

EVB USB interface (A) could be imaged to two virtual ports.
SIMCOM_EVB Kit_User Guide_V1.01
I/O Description
I 5V/2.0A DC source input
Figure4: Audio Interface
I/O Description
I Negative microphone input
O Negative receiver output
I Positive receiver output
O Positive microphone input
Smart Machine Smart Decision
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2016-08-17