1.2
Communications Network
The illustration below shows the Inmarsat C communications network.
Data
Communications
Network
Telex Network
Terrestrial
Communications
Network
Inmarsat-C satellite coverage area
Network
Coordination
Station (NCS)
NCS/LES
Signaling Link
MES Signaling
Channel
MES Message
Land Earth
Channel
Station
LES TDM
(LES)
Channel
1. INMARSAT C SYSTEM OVERVIEW
NCS/NCS Signaling Link
NCS Common Channel
Mobile Earth
Station (MES)
Data Terminal
Equipment (DTE)
Data Circuit
Terminating
Equipment
(DCE)
Enhanced Group
Calling (EGC) Receiver
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