User's Manual

Table Of Contents
Chapter 1: Introduction
98-131305-A The Inmarsat BGAN system 7
Overview of the BGAN system
A complete BGAN system includes the EXPLORER 325 terminal with connected peripherals, an
EXPLORER 325 antenna, the BGAN satellite, and the Satellite Access Station (SAS). The satellites
are the connection between your terminal and the SAS, which is the gateway to the worldwide
networks (Internet, telephone network, cellular network, etc.).
EXPLORER 325
Satellite Access Station
(SAS)
Satellite
Packet-Switched Network
Circuit-Switched Network
EXPLORER 325
IP Handset
antenna
terminal