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HUAWEI EM820W HSPA+ PC Embedded Module
User Guide
On the module, the Mini-PCI interface signals are: voltage of power, SIM card
interface, USB D+, D-interface, LED indicator interface. The implementation of
signals on the simplified board is as follows:
1.
Voltage of power: The USB port of the PC supplies the power (5 V), which is
converted into 3.3 V power for the module.
2.
SIM card interface: The SIM card slot is expanded outside the board.
3.
Data communication: The module exchanges data with the PC through the USB
port.
4.
LED indicator: LED indicators are expanded outside the board.
In addition, the antenna adapter is also expanded outside the board for connecting to
an external antenna to perform the current network test
Issue 01 (2010-12-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Introduction to the Development Board
3
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