ST6002 Technical Manual
7
3 Satellite Messaging System Overview
IsatData Pro is a global, low data rate, two-way messaging service, optimized for machine-to-machine
communications. It offers fully-acknowledged transactions of varying size, with near real-time delivery.
The service is ideal for applications requiring relatively low amount of data such as form transfer, text
messaging, periodic reports and being suitable for event-driven data. Typical applications include vessel
and fleet management and security, remote monitoring, telematics and SCADA.
The network provides the following key features:
• Up to 6,400 bytes from-mobile messages
• Up to 10,000 bytes to-mobile messages
• Broadcast and multicast capabilities
• Store-and-forward message processing
IsatData Pro is an Inmarsat service delivered exclusively by ORBCOMM through the Inmarsat network.
ORBCOMM provides the service, either directly or through Distribution Partners, to Solution Providers
(SP) responsible for value-add application development and commercial fulfillment for end users of the
technology.
The key system elements to deliver the services are shown in Figure 2:
Figure 2: IsatData Pro Network
• Application servers exchange data with the gateway to access the IsatData Pro service and
process the data to deliver it as meaningful business information to end users.
• Gateway provides a web-service interface to application servers via the Internet and manages
administrative and billing aspects of the IsatData Pro service.
• Land Earth Stations provide connection to the satellites in each region.
• Inmarsat satellites provide global service coverage.
• Terminals installed on remote assets send and receive messages using the Inmarsat satellites and
interface with devices or personal deployed in the field.