ISU AT Command Reference

ISU AT Command ReferencePhase VI AT CommandsList the supported data rates. The response is in the form:+IPR: (supported s),(supported s)10.8 +SBDWT - Short Burst Data: Write a Text Message to the ISU (Revised)Exec Command: +SBDWT=[]This command is used to transfer a text SBD message from the FA to the single mobile originated buffer inthe ISU.The text message may be entered on the command line:• For example, “AT+SBDWT=hello”.• The length of is limited to 120 bytes. This is due to the length limit onthe AT command line interface.• The message is terminated when a carriage return is entered.Alternatively, the text message may be entered separately:• Upon entering the command “AT+SBDWT”, the ISU will indicate to the FA that it is preparedto receive the message by sending the string “READY” (hex 52 45 41 44 59 0D0A) to the FA.• Once the FA receives the READY indication, the text message must be sent, terminated by acarriage return.• The length of the text message entered in this way is limited only by the maximum mobileoriginatedmessage length of 1960 bytes.• The mobile originated buffer will be empty upon power-up.• If any data is currently in the mobile originated buffer, it will be overwritten.Command Response:For the “AT+SBDWT” form:0 SBD message successfully stored in mobile originated buffer.1 SBD message write timeout. No terminating carriage return was sent within thetransfer period of 60 seconds.For the “AT+SBDWT=” form:OKERRORSBD message successfully stored in mobile originated buffer.An error occurred storing SBD message in mobile originated buffer10.9 +SBDDET - Short Burst Data: DetachExec Command: +SBDDETInitiates an SBD session to detach the ISU from the Gateway.Command Response:+SBDDET:,where::0 Detach successfully performed.1 An error occurred while attempting the detach.Version 2.6March 30, 2006 73