
RavenXT-Series
Sierra Wireless Airlink Digital Cellular Modems
The RavenXT-series modems are full-duplex devices
that transmit data to the local cellular tower. A PC
retrieves the data from the cellular tower via the
Internet
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. Internet communications provide faster
communication rates and eliminate dialing delays
and long distance fees.
e following modems are o ered:
• RavenXTV—Code Division Multiple Access
(CDMA) modem con gured for Verizon networks
• RavenXTG—General Packet Radio Service
(GPRS) modem con gured for AT&T networks
Features
• Eliminates the dialing delays and long distance
fees that land-line phone modems experience
• Allows simultaneous communications with
multiple dataloggers in the network
• Housed in a rugged aluminum case
• Operates over a wide operating temperature
range (see speci cations)
Cellular Coverage
Before purchasing a digital cellular modem, ensure
that there is a CDMA or GPRS network with cover-
age at the datalogger site. For the RavenXTV, you’ll
need to contact Verizon and ask them about coverage.
For the RavenXTG, a coverage map is available at:
www.wireless.att.com/coverageviewer/
PC running PC400 or
LoggerNet Software
Base Station
CDMA or GPRS network
handles call routing
between the cell
tower and Internet
Yagi Antenna
Solar Panel
Enclosure houses
modem, datalogger,
and power supply
Datalogger Site
Typical System
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e RavenXTV uses 1xRTT/EVDO to communicate over the Internet. It can also use IS-95 to communicate over standard telephone lines.
Contact Campbell Scienti c for system requirements if using IS-95.
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