Inmarsat EXPLORER 500 User Manual page 183

network.
MDI-X Medium Dependent Interface. An MDI-X (for MDI crossover) is a version of MDI that enables
connection between like devices. MDI ports connect to MDI-X ports via straight-through
cabling. MDI-to-MDI and MDIX-to-MDIX connections use crossover cabling.
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.
NC Not Connected
P
Pairing Bluetooth Pairing happens when two Bluetooth enabled devices agree to communicate. The
two devices exchange passkeys and join what is called a trusted pair. In a trusted pair, the
two devices automatically accept communication with each other.
Passkey A unique code or password used when pairing Bluetooth devices.
PCB Printed Circuit Board
PDA Personal Digital Assistant. A lightweight, hand-held, usually pen-based computer used as a
personal organizer.
PDP Packet Data Protocol. A network protocol used by external packet data networks that
communicate with a GPRS network.
PIN Personal Identification Number. A code number used to provide access to a system that has
restricted access.
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.
R
RSSI Received Signal Strength Indicator
S
SAS Satellite Access Station. The gateway between the satellites and the worldwide networks such
as Internet, telephone network, cellular network etc.
TT 98-122274-O
Glossary
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