Introduction – Sierra Wireless RJ-11 User Manual
Page 8
Rev 3.0 B 2/15/08
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1: Introduction
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Many existing meters, data loggers, RTUʹs, PLCʹs, point‐of‐
sale, and other remote devices only have physical interfaces
designed to access the telephone network. They do not have
serial or Ethernet ports. They currently use analog cellular or
standard phone lines to connect in circuit‐switched mode for
data transfer.
Analog cellular phone service is being discontinued. The
combination of the RJ‐11 IP Gateway and a Sierra Wireless
AirLink Raven with Ethernet port, enables remote connectivity
between host applications and these remote devices over
cellular packet data networks. The RJ‐11 IP Gateway provides
the bridge between a device requiring an RJ‐11 interface and
the Raven, with its Ethernet interface.
Figure 1-1: RJ-11 IP Gateway with an AirLink Raven-E