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Glossary
L
LAN
Local Area Network
LCD
Liquid Crystal Display
M
MAC
Media Access Control address. A hardware address that uniquely
identifies each node of a network.
N
NAT
Network Address Translation.
P
PCB
Printed Circuit Board
PIN
Personal Identification Number. A secret numeric password
shared between a user and a system, used to authenticate the
user to the system.
PoE
Power over Ethernet. A standard for combining power supply with
transmission of data over the Ethernet. The source unit "injects"
power into the Ethernet cable and the power is "picked up" at the
connected device.
PSK
Pre-Shared Key
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.
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