Iridium 9603 SBD Transceiver Product Developers Guide
Revision 3.1
Proprietary & Confidential Information
Distribution of guide restricted to product developers only • Information contained in this guide is subject to change without notice.
List of Abbreviations
(V.24 signal) Clear To Send. This signal is used to control the flow of data to the Iridium 9603/9603N
(V.24 signal) Data Carrier Detect
Data Communications Equipment. In this Product, DCE refers to the Iridium 9603/9603N
(V.24 signal) Data Set Ready. This signal, from the Iridium 9603/9603N, indicates readiness to accept
communication over the data port
Data Terminal Equipment. In this Product, DTE refers to the FA
(V.24 signal) Data Terminal Ready. This signal, from the FA, requests the Iridium 9603/9603N to accept
communication over the data port
ETC SBD Subsystem (synonymous with GSS)
Earth Terminal Controller
Field Application; the application controlling the Iridium 9603/9603N
Federal Communications Commission
Gateway SBD Subsystem (synonymous with ESS)
International Mobile Equipment Identity
Mobile Originated Message Sequence Number
Mobile Terminated Message Sequence Number
Right Hand Circular Polarization
(V.24 signal) Ring Indicate. This signal, from the Iridium 9603/9603N, indicates that an MT message is present
at the GSS
(V.24 signal) Request To Send. This signal is used to control the flow of data from the Iridium 9603/9603N.
Universal Asynchronous Receiver Transmitter
Voltage Standing Wave Ratio