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1
SAILOR FleetBroadBand
Training Manual
1
1 Inmarsat Network
BGAN-X (SAILOR 500 FleetBroadband, SAILOR 250
FleetBroadband and SAILOR 150 FleetBroadband) is a platform
delivering “always-on” Internet service, telephony /fax and ISDN.
The BGAX-X platform delivers a higher data rate than any of the
previous Inmarsat systems by the use of their I4 (Inmarsat 4)
satellites, the BGAN network and a new generation of small and
light user terminals.
1.1 Overview
UT
’s (BGAN-X User Terminals, SAILOR 500 FleetBroadband,
SAILOR 250 FleetBroadband and SAILOR 150 FleetBroadband)
offer communications through a microwave link anywhere with a
line-of-sight to one of the Inmarsat-4 geostationary satellites.
The
I-4 satellites
(
APAC
(Asia-Pacifi c) @ 143ºE,
Americas
@
98ºW and
EMEA
(Europe-Middle East-Africa) @ 25ºE) relays
traffi c between the UT’s and the
SAS
(Satellite Access Stations).
Figure 1-1: BGAN-X network overview
A SAS is a BGAN-X Earth Station, of which there are three – one
in Burum in the Netherlands and two on Hawaii.
The SAS houses the
RNS
(Radio Network Stations) and the
CN
(Core Network) mainframes.
The RNS’, there are three of them (one in Burum, the Netherlands
and two on Hawaii) manages the radio traffi c to and from the satellite
whereas the CN provides the terrestrial telecommunications
infrastructure and switching.
All traffi c passes through the RNS and CN where it is interconnected
the
DP’s IP networks
(IP traffi c = PS (Packet Switch)) or the public
telephone network (voice, fax, ISDN = CS (Circuit Switch)).
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