Service Details
The Iridium Satellite network enables SBD to be offered on a global basis
through a single network point of presence. However, this is subject to
appropriate licensing and regulatory conditions. The basic architecture is
illustrated in the diagram below:
SBD provides a new capability for vertical market applications in the Oil, Gas,
Rail, Maritime, Aeronautical, and Utility industries as well as applications in
the Government and Military sectors. The SBD service is available to certified
Value Added Resellers who include it as part of a complete end-to-end solution
for specific wireless communications needs. Iridium looks to selectively partner
with skilled Value Added Resellers (VARs) to integrate the required hardware,
software, and SBD service that ultimately forms the complete packaged solution
for the end customer.
Remote Applications send Mobile Originated SBD (MO-SBD) data messages via an
Iridium 9522 L-Band Transceiver (“LBT”). The application microcontroller or
microprocessor communicates with the LBT using AT commands over an RS232 serial
port. The application loads the data message into the LBT and instructs it to
send the data message. The data message is transmitted across the Iridium
satellite network utilizing inter-satellite links to reach the Iridium Gateway.
From there the data message is transferred via e-mail to the VARs host computer
system. Here the message is stored in a database for further data processing.
Mobile Terminated SBD (MT-SBD) messages are sent to the Iridium Gateway via
e-mail from the VARs host computer system. MT-SBD data messages are delivered to
the LBT following a MO-SBD or “mail-box check” initiated by the remote
application.
The maximum length of a MO-SBD message is 1960 bytes. The maximum length of a
MT-SBD message is 1890 bytes. Global network transmit latency for delivery of
messages ranges from approximately 5 seconds for short messages to approximately
20 seconds for maximum length messages.
Other Info
Iridium™
SMS (short message service) and SBD (short burst data) FAQ
