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HUAWEI EM820W HSPA+ PC Embedded Module
Hardware Guide Overall Description
Issue 01 (2010-12-31)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2
2 Overall Description
2.1 About This Chapter
This chapter gives a general description of the EM820W module and provides:
z
Function Overview
z
Circuit Block Diagram
z
Application Block Diagram
2.2 Function Overview
Table 2-1 Feature
Feature Description
Working bands
GSM/GPRS/EDGE 850/900/1800/1900 (MHz)
HSPA+/HSUPA/HSDPA/WCDMA 2100/1900/900/850 (MHz)
Normal working temperature: –10°C to +55°C
Working
temperature
Extreme working temperatures: –20°C to –10°C and +55°C to
+70°C
Ambient
temperature for
storage
–40°C to 85°C
Power voltage 3.3 V±9 %(3.3 V is recommended)
AT commands
See the HUAWEI EM820W HSPA+ PC Embedded Module
Software Guide Specification.
One standard Subscriber Identity Module (SIM) card interface (3
V or 1.8 V)
USB 2.0 (high speed)
Application
interface (52pin
Mini PCI-E
interface)
WAKE#: Wake up signal