华为EM820W 3G WCDMA模块 em820w工业通信模块无线数据终端

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

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
hspa+ rel7
physical
features
dimensions (l × w × h): 50.95 mm × 30 mm × 4.5 mm
weight: < 15 g
certification
information
restriction of the use of certain hazardous substances (rohs),
european conformity (ce), federal communications
commission (fcc)