大量出售 华为 EM820W 3G模块

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

华为3g模块代理商

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"大量出售 华为 EM820W 3G模块"的信息传送内容为都可以，频段是五频850/900/1800/1900/2100MHz（MHz），型号为EM820W，短信息模式是都可以，支持网络为3G+WCDMA+HSDPA，品牌是华为