Sunsea AIoT SimCom SIM7090G-EVB Kit - 3.3 SIM Card Interface

SIM7090G EVB Kit User Guide V1.00
www.simcom.com
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Headset interface:
Pin
Signal
I/O
Description
1
MICN I Negative microphone input
2
SPKN
O
Negative receiver output
3
SPKP I Positive receiver output
4 MICP O Positive microphone input
3.3 SIM Card Interface
J202 is the Micro SIM Card holder.