Brief Description Of The Interface On The Demo Board - Huawei EM770W User Manual

Brief Description of the interface on the DEMO board

5V external power supply interface
The 5V external DC power supply interface on the DEMO board is a male socket with 1 core.
The related circuit is as follows:
Mini USB interface
A Mini USB B type Receptacle is provided on the DEMO board, which can be connected to the
USB port of PC or other USB master device.
The related circuit is as follows:
The DEMO board can get power supply from this Mini USB interface, except the external
power supply interface.
USIM/SIM card socket
A PUSH-PUSH SIM card socket is provided on the DEMO board, so a USIM/SIM card can be
inserted into.
The related circuit is as follows:
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