Japan Radio Co. JUE-60GX, Instruction Manual

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Section 1 Inmarsat GX systems 1-2
1.1.2 Inmarsat Global Xpress system
The Inmarsat Global Xpress system consists of NOC and SAS Functions of each facility are as follows:
Network Operation Center (NOC)
The NOC located at the INMARSAT headquarters in London U.K., coordinates communication lines of
the network 24 hours a day, 365 days a year.
The NOC maintains contact via dedicated satellite and terrestrial links with the NCSs and SASs in all
Ocean regions.
The NOC performs the following:
• Coordination with the Satellite Control Center (SCC) for operation of satellites.
• Coordination with NCS and/or SAS for system operation.
• Collection of any status data in operation.
• Coordination of any test of satellite’s performance.
OBC (Operational Backup Center):
OBC backs up data of NOC.
179E
I5-F3
55W
I5-F2
63E
I5-F1
57E
I5-F4
Global Xpress network available
over at least 99% of this area
Extendable Global Xpress
Coverage via steerable beams