深圳市优勃技术有限公司现为华为技术有限公司的无线数据模块（2G/3G/4G）代理商，专注于为无线通信应用领域客户提供产品和技术支持。主营产品有华为MG323,MC323，EM770W，EM660，EM820W,EM560，MU609，MU609T,MU509，MC509，MT509，MU739,MU736，MU733，ME906V/E/J,ME909等一系列华为2G/3G/4G模块。我们秉承“专于产品、精益求精、诚于经营、客户至上”的理念，竭诚欢迎国内外客户前来洽谈业务，为彼此双赢互利企业发展共创美好明天。
深圳市优勃技术有限公司
联系人：李先生
手机：18675532337
电话：0755-23607403
QQ：314549453
华为3G高速模块 WCDMA（联通用）
EM820W资料
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
HUAWEI EM820W HSPA+ PC Embedded Module
Hardware Guide Overall Description
Issue 01 (2010-12-31) Huawei Proprietary and Confidential
Copyright ? Huawei Technologies Co., Ltd. 3
Feature Description
W_Disable#: for turning on/off the RF signal.
LED_WWAN#: Active-low LED signal indicating the state of the
card
Power Interface
New message alert, receiving and sending text messages
Management of text messages: read messages, delete
SMS messages, storage status, and message list
Support for the protocol data unit (PDU) mode
GSM CS: 9.6/14.4 kbps
GPRS/EDGE: Multi-slot Class 12, Class B
WCDMA CS: UL 64kbps/DL 64kbps
WCDMA/HSDPA PS: UL384kbps/DL3.6Mbps, HSDPA Category
6, 8, 9, 10, 12, 14
Data services
