43
Nera WorldCommunicator
GETTING STARTED
LIST OF TERMS
AC Alternating Current
AOR-E Atlantic Ocean Region East.
AOR-W Atlantic Ocean Region West.
Azimuth horizontal direction angle between north and, e.g. the
direction to the satellite.
Bit rate the number of bits transmitted per second (bps).
Bps Bits per second.
CHV2 higher access level on the SIM card, corresponding to
Nera F77 "owner" level.
DC Direct Current.
DECT Digital Enhanced Cordless Telecommunication
DID Destination terminal IDentification.
DSP Digital Signal Processor.
DTE Data Terminal Equipment.
Elevation vertical angle to the satellite, i.e. the height of the
satellite above the horizon.
Fleet 77 Inmarsat's single integrated voice, fax, Mobile Data
Service and Mobile Packet Data Service.
FWD ID forward Id, telephone network identity.
GAN Inmarsat Global Area Network.
Home LES Home Land Earth Station gives access to MPDS
service like Internet / e-mail and handles MPDS billing system.
IMN Inmarsat Mobile Number, a unique 9-digit number which
identifies each device connected to Nera F77.
Inmarsat International Maritime Satellite Organisation.
IOR Indian Ocean Region.
ISDN Integrated Services Digital Network.
ISN Inmarsat Serial Number, individual number assigned to
each Nera F77 terminal.
ITU International Telecommunications Union
Kbps Kilobits per second.
LAN Local Area Network.
LES Land Earth Station, a station that interconnects fixed
telecommunications networks with the Inmarsat system; may
also be called a CES (Coast Earth Station) or a GES (Ground
Earth Station).
M4 Inmarsat Multi-Media Mini-M.
MES Mobile Earth Station, a user terminal for an Inmarsat
system; the Nera F77 terminal is an MES for the Inmarsat GAN
system; MES may also be called SES (Ship Earth Station) or, if
on aircraft, AES (Aeronautical Earth Station).
MPDS Inmarsat Mobile Packet Data Service.
MSN Multiple Subscriber Number, the extension number that
connected equipment responds to. Also used for internal calls.
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 Nera F77 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 Nera F77 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).
To Next Page
Loading...
