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HUAWEI EM820W HSPA+ PC Embedded Module
User Guide
2
Introduction to the Development Board
The EM820W module works inside the portable computer through the Mini PCI-E
interface, which is inconvenient for the user during measurement and commission.
With the EM820W simplified board, the signals that the EM820W module needs on
the Mini PCI-E interface are simulated outside the portable computer. The signals are
used for product development, commission, and software upgrade on production
lines.
Figure 2-1 shows the board structure.
Figure 2-1 Structure of the EM820W simplified board
The test points shown in the preceding figure are described as follows:
1.
USB connector: Mini USB B type, side-plugged USB connector;
2.
Mini PCI-E connector: female, 52-pin, straight, SMT;
3.
Connector locker: used together with the Mini PCI-E connector for fixing the
module;
4.
SIM card holder: used for SIM card insertion;
5.
RF connector: coaxial connector, straight, male, SMT;
6.
RF connector: RF switch, bent, female, SMT;
Issue 01 (2010-12-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Introduction to the Development Board
2
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