1. Inmarsat Service systems   
1-3 
Chapter1   The Inmarsat Service Systems 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fig.1.1.2    The Inmarsat FleetBroadband service Network 
 
 
1.2    The Inmarsat FleetBroadband services 
Inmarsat FleetBroadband provides service shown below. 
Packet Switched service (PS), Circuit Switched service (CS), and Short Message Service (SMS) 
can be used simultaneously. 
JUE-501/JUE-251  supports  a maximum of 11 PS connections  and  one  CS  connection at  the 
same time. 
Packet switched service (PS) 
Standard IP 
 
•  Internet and intranet access at speed up to 432kbps over a 
shared channel for FB500. (Up to 284kbps for FB250.) 
•  Charged by data amount 
 
Streaming IP 
Internet 
and intranet access at guaranteed data rates on 
demand up to 256kbps (8, 16, 32,  64, 128  and 256kbps)  for 
FB500. (Up to 128kbps for FB250)   
•  Charged by connection time. 
 
1) Network Coordination Station (NCS) 
 
Inmarsat Satellite 
5) Satellite Access Station (SAS) 
 
 
2) Network Operation Center (NOC) 
3) Satellite Control Center (SCC) 
4) Tracking Telemetry and 
Control Center (TT&C) 
Public network 
Mobile Earth 
Station (MES)