ISU AT Command Reference
ISU AT Command Reference
ISU AT Command Reference
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>ISU</strong> <strong>AT</strong> <strong>Command</strong> <strong>Reference</strong>IntroductionCICell IdentifierCTS(V.24 Signal) Clear To Send. This signal is normally used in controlling the flow of data to the <strong>ISU</strong>.(See RTS)DCD(V.24 Signal) Data Carrier Detect. This is a signal from the <strong>ISU</strong> that indicates that it is connected tothe far-end modem for data transfer.DCEData Communications Equipment, i.e., a data adaptor or modem. In this product, DCE refers to the<strong>ISU</strong>.DSR(V.24 Signal) Data Set Ready. This signal, from the <strong>ISU</strong>, indicates the readiness of the phone toreceive data.DTEData Terminal Equipment, such as a dumb terminal, or a PC running communications software.DTR(V.24 Signal) Data Terminal Ready. A signal from the DTE to the <strong>ISU</strong>. Can be used to terminatecalls.ESSETC SBD Subsystem (synonymous with GSS)ETCEarth Terminal ControllerETSIEuropean Telecommunications Standards Institute.FAField ApplicationGSMGlobal System for Mobile communications.GSSGateway SBD Subsystem (synonymous with ESS)IRLPIridium Radio Link Protocol<strong>ISU</strong>Individual Subscriber UnitLACLocation Area CodeModemMOdulator/DEModulator. A device used to convert digital signals to analog signals for transmissionand reception of telephone lines.MOMobile Originated (for Short Burst Data)Version 2.6March 30, 2006 2