Instruction/ maintenance manual of the product EM820W Huawei
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HUAWEI EM820W HSPA+ PC Embedded Module Hardware Guide Issue 01 Date 2010-12-31.
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HUA WEI EM820W HSP A + PC Embedded Module Hardware Guide About This Docum ent Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A + PC Embedded Module Hardware Guide Contents Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. i Contents 1 Introduction ........................................................
HUA WEI EM820W HSP A + PC Embedded Module Hardware Guide Contents Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. ii 4.4.1 Antenna Design Indicators ...............................................
HUA WEI EM820W HSP A + PC Embedded Module Hardware Guide T ables Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. iii Tables T able 2-1 Feature .....................................................
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Figures Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. iv Figures Figure 2-1 Circuit block diagram of the EM820W module ...................
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Introduction Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Overall Description Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Overall Description Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Overall Description Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 6 Definition of the EM820W Mini PCI Express pins Pin No.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 7 Definition of the EM820W Mini PCI Express pins Pin No.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 8 Definition of the EM820W Mini PCI Express pins Pin No.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 9 Figure 3-1 HUA WEI EM820W power supply t ime sequence.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 10 The high-speed signal characteristics ar e in accordance with the Eye Pattern T emplates of the USB2.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 12 module board before entering the EM820W pr oc essor .
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 13 Table 3-8 SIM IO requir ements IO Minimum Maximum V IL 0 0.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 14 3.7 W_DISABLE# Signal The W_DISABLE# signal is provided to allow users to disable wireless communications add-in cards.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 16 Figure 3-5 LED typica l electro-optical characteristics curves 3.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 17 4 RF Specifications 4.1 Operating Frequencies T able 4-1 shows the RF bands supported by EM820W .
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 18 Compensation for WCDMA 850 MHz or 900 MHz: 0.6 dB Compensation for WCDMA 2100 MHz or WCDMA 1900 MHz: 0.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 19 EM820W Test Value (dBm) Item 3GPP Protocol Claim (dBm) Min Type Max BandII (BER<0.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 23 into account. The appropriate antenna gain pr olongs the service life of relevant batteries.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 27 Figure 4-3 shows the ESD protection circuit recommended for the antenna interface.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 30 5.5 Power Supply Features 5.5.1 Power Supply The EM820W receives its power supply fr om a 3.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 35 Item Test Condition Standard Drop test First case: 0.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Mechanical S pecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 36 6 Mechanical Specifications 6.1 Dimensions and Interfaces 6.1.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Mechanical S pecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 37 Figure 6-2 shows a 52-pin Mini PCI Expr ess connector (take the Molex 67910002 as an example).
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Mechanical S pecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Mechanical S pecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 39 6.3.2 Romoving the EM820W from the Main Board of PC Step 1 Disconnect the antenna cables from the EM820W.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Appendix A Circuit s of T ypical Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Appendix B Acronyms and Abbreviations Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Appendix B Acronyms and Abbreviations Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co.
An important point after buying a device Huawei EM820W (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Huawei EM820W yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Huawei EM820W - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Huawei EM820W you will learn all the available features of the product, as well as information on its operation. The information that you get Huawei EM820W will certainly help you make a decision on the purchase.
If you already are a holder of Huawei EM820W, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Huawei EM820W.
However, one of the most important roles played by the user manual is to help in solving problems with Huawei EM820W. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Huawei EM820W along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center