Huawei EM820W Hardware Manual page 7

HUAWEI EM820W HSPA+ PC Embedded Module
Hardware Guide
Figure 2-1 Circuit block diagram of the EM820W module
Figure 2-2 Application block diagram of the EM820W module
Figure 3-1 HUAWEI EM820W power supply time sequence.
Figure 3-2 USIM interface schematic on PC
Figure 3-3 Pin definition of the SIM card Socket
Figure 3-4 LED_WWAN# signal reference circuit diagram
Figure 3-5 LED typical electro-optical characteristics curves
Figure 4-1 SATIMO microwave testing chamber
Figure 4-2 Recommended antenna positions
Figure 4-3 ESD protection circuit recommended for the antenna interface
Figure 6-1 Dimensions of the EM820W
Figure 6-2 Dimensions of the Mini PCI Express connector
Figure 7-1 Circuits of typical interfaces in the EM820W module
Issue 01 (2010-12-09)
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Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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Figures
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