8. LIST OF TERMS
8-2
NCS
Network Coordination Station, station that supervises all messages and
signals sent in the Inmarsat system; one in each Ocean Region.
OID
Originating terminal IDentification.
Ocean Region
the coverage area of an Inmarsat satellite within which
FELCOM 50 may communicate.
PABX
Private Automatic Branch Exchange.
PIN
Personal Identification Number.
POR
Pacific Ocean Region.
PPP
Point-to-Point Protocol, protocol used for serial data communication via the
FELCOM 50 RS-232 or USB port.
PUK
Personal Unblocking Key, code that allows unblocking a SIM card.
RF
Radio Frequency.
R LES
Regional Land Earth Station sets terminal in MPDS list.
S/A operator
StandAlone operator who maintains connectivity in the event of
Network Coordinating Station failure.
SBS
Shared Base Station assigns channels to the MPDS user and handles the
MPDS communication.
SIM
Subscriber Identity Module.
SMS
Short Message System.
Spot Beam
an Ocean Region is divided into sub-regions, each “spotlighted” by
a beam from the region satellite.
Terrestrial Network
a fixed telecommunications network, such as a telephone
network or a data network, which connects to the Inmarsat system at an
LES/NCS.
UDI
Unrestricted Digital Information.
USB
Universal Serial Bus.
UTC
Coordinated Universal Time, referenced to Greenwich Mean Time (GMT).
Содержание Felcom 50
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