User guide

Rev 3.0D Jul.09 53
8
8: Data Communication and Host
Modes
• Basic Modes
• Serial Modes
• Data Communication
TheRavenXT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 XT 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 XT to a router. The router would provide the multiple routing
and the Raven XT would provide one-to-one for the router to the
cellular network and the Internet.
Asthehost,theRavenXTcanusedifferentcommunication
modes:
Basic Modes
• AT:TheRave n XTacceptsandrespondstostandardAT
commands.
• PassThru:Directconnectiontointernalhardware(OEM
Module)oftheRavenXT.
• Telnet:TheRavenXTauto‐answersTCPconnectionsto
allowterminalemulationusingeitheralocalUSBEthernet
connectionorremotelyusingthecellularconnection.
Tip: By default, the Raven XT 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 XT. All serial modes
are entered by use of a startup mode command.
Serial Modes
• PPPMode:TheRavenXTusesPPPtocommunicatewitha
deviceorcomputerconnectedtotheserialorUSBport.
• SLIPMode:TheRaven XTusesSLIPtocommunicatewith
adeviceorcomputerconnectedtotheserialorUSBport.