Sierra Wireless MP 595 - Manual (Page 14)

MP 595 Modem User Guide
The following diagram illustrates how the system works:
MP Modem
GPS satellite
Antenna
MP modem installed in vehicle with a notebook computer
Base station
VPN over
Internet
Computer/Host
Host
Network
Firewall
and
Router
Network operations center
Private /
dedicated link
Customer fixed end system
Figure 1-1: The MP modem and the network.
The MP modem has a rugged design that allows it to
withstand the vibration, shock, humidity, and extremes of
temperature experienced in the normal operation of police,
emergency, utility, and field service vehicles.
You can use the network connection provided by the MP
modem to access shared data, browse the Internet, and send
and receive e-mail and text messages. The MP modem also
allows for sensors, gauges, and alarms (such as panic buttons)
to be installed in vehicles and remotely monitored from a
central location.
About CDMA
The MP 595 modem operates over a type of wireless network
called Code Division Multiple Access (CDMA). CDMA Third
Generation (3G) technology provides a variety of connectivity
features, depending on your service provider and account:
• 1x Evolution-Data Optimized Revision A
(1xEV-DO Rev. A) supports Internet connections with data
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