1: Introduction
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
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Rev 3.0 B 2/15/08 |
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