Sierra Raven EDGE manual Data Communication and Host 6 Modes, Basic Modes

6: Data Communication and Host 6 Modes

•Basic Modes

•Data Communication

The Raven plays the part of a HOST when a computer or another device is connected directly to its port and routes data to/from the connected device to the cellular network.

Caution: The Raven moves data from one port to the cellular network in a simple one-to-one routing. It does not employ a routing table or any complicated routing protocol.

Tip: If you need to have one-to-many routing, you can connect the Raven to a router. The router would provide the multiple routing and the Raven would provide one-to-one for the router to the cellular network and the Internet.

As the host, the Raven can use different communication modes:

Basic Modes

•AT: The Raven accepts and responds to standard AT commands.

•PassThru: Direct connection to internal hardware (OEM Module) of the Raven.

•Telnet: The Raven auto‐answers TCP connections to allow terminal emulation using either a local Ethernet connection or remotely using the cellular connection.

Tip: By default, the Raven is in AT Mode and allows AT Commands to be entered via terminal connection (through the local port connection) or remotely (through the cellular network). PassThru Mode can only be exited by resetting the Raven. All serial modes are entered by use of a startup mode command.

Data Communication

•Public and Private Modes: The method used by the Raven to pass an IP address to a connected device.

•Keepalive: How the Raven maintains its connection to the cellular network.

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