• A complete INMARSAT-C Remote   Monitoring system offered by SCADATRON consists of a ST2000 CPU, appropriate sensor, a Satellite Transceiver/ Land  Mobile Unit with antenna, and power source.

• The Inmarsat system maintains a     satellite in each of four ocean regions: Atlantic Ocean East, Atlantic Ocean West,Pacific Ocean, and Indian Ocean. These satellites provide coverage throughout most of the world

• The ST2000 CPU provides continuous, onsite monitoring and data logging. Monitored data can be downloaded periodically over the satellite link.

• The Land Earth Stations (LES) and the Network Coordination Stations (NCS) manage and coordinate Inmarsat-C telecommunications. The Land Earth Stations are land based receiving and transmitting stations that coordinate national and international fixed communication  network.

• Operational parameters can also be adjusted remotely over the link.

• One Network Coordination Station resides in each of the four ocean regions to monitor and control communication traffic within each region.

• Inmarsat-C is a commercial geostationary system. Satellites in geostationary systems maintain orbits that coincide with the Earth's rotation allowing them to remain essentially fixed above a geographic location.

The Satellite Link configuration diagram above shows two segment of data transmission. The first segment shows telemetry data is transmitted from Remote Monitoring Station toward the INMARSAT-C satellite and repeated down to the Land Earth Stations (LES). After managed by the Network Coordination Stations (NCS) in LES, the second segment shows data is transmitted from Land Earth Stations (LES) back to the satellite and repeated down to the Central Monitoring Station satellite transceiver to be received and recorded by the Front End Processor (FEP).

INMARSAT-C SATELLITE TRANSCEIVER
 

The Thrane & Thrane Land Mobile TT-3020C supports all Inmarsat communication modes, including e-mail, position reporting, fax, telex, x.25, and mobile-to-mobile communications, mobile-to-land fax services, the standard PU/PA programming
formats, as well as an advanced reporting format with multiple DNID's, independent reporting timers and global ocean area pre-programming.

The TT-3020C, Transceiver can be supplied with our compact omni-directional TT-3005M, Antenna, integrating both Inmarsat-C and GPS operation into one single unit. The transceiver also includes a number of parallel control ports, standard NMEA 0183 nav/data interface and an advanced ArcNet local network interface for connection of up to several ArcNet printers and alarm panels. The TT-3020C supports PC base Capsat® Manager Program for fleet tracking and fleet management.

The Inmarsat-C satellite communications system offers global access to the Inmarsat-C service using the omni-directional Inmarsat-C/12-channel GPS antenna. It is also compliant with the latest Inmarsat-C specifications for non-SOLAS distress calling and international fisheries standards.