Glossary
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satellite resources.
IMEI
International Mobile Equipment Identity. A unique number identifying your terminal
IMSO
International Maritime Satellite Organisation. An intergovernmental body established to
ensure that Inmarsat continues to meet its public service obligations, including obligations
relating to the GMDSS.
IP
Internet Protocol
L
LAN
Local Area Network
LED
Light Emitting Diode
M
MAC
Media Access Control.
N
NAT
Network Address Translation. An Internet standard that enables a local-area network to use
one set of IP addresses for internal traffic and a second set of addresses for external traffic.
A NAT module makes all necessary address translations.
P
PIN
Personal Identification Number. A code number used to provide access to a system that has
restricted access.
PoE
Power over Ethernet
POST
Power On Self Test. A test sequence that runs every time the system is powered up or reset.
PUK
PIN Unblocking Key. An eight-digit code used to unblock a SIM card after three incorrect PINs
have been entered. The PUK code is supplied with the SIM card.
S
SAS
Satellite Access Station. The gateway between the satellites and the worldwide networks such
as Internet, telephone network, cellular network etc.
