Black Box LZ1500A-R3, Manual

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UTP AND THIN ETHERNET REPEATERS
(address, enabling and disabling functions, etc.).
LED —Light emitting diode.
Link Integrity Test —A signal sent on a line to verify connection when there
is no traffic on the line.
Local Area Network (LAN) —A computer-based communications system
confined to a defined local area is a LAN. The network may include a
combination of personal computers, terminals, printers, and other
attached devices.
MAU— Media Access Unit. A device used to connect a network node to a
network segment. Also known as Transceivers.
Network Interface Card (NIC) —An add-in card or external box that
connects a computer to a network. The card or box has a connector for
attaching the network cable. Sometimes the network interface
card/controller (or NIC) is called the interface card. Different
types of computers require different interface cards. The connectors are
different sizes to accommodate the cables of different networks.
Node
—An addressable device on a network, such as a printer, fax, modem
or computer.
Ohm —An electrical unit of measurement used to measure the resistance
of a transmission medium to the flow of electrons (a current) through the
medium.
Ohmmeter —A device that measures the resistance of electrical current
flowing through a wire.
Packet —A group of bits, including address, data, and control elements,
that are switched and transmitted together.
Peer —A device treated as the equal of another device on the network.
Networks that let other nodes communicate with each other as equals are
called peer-to-peer networks.
Protocol —A set of rules for exchanging information within a specific type
of network, such as Ethernet or Token Ring.
Punchdown Block —A wiring device used by phone companies and
network installers for connecting many wires together in one location. A
typical punchdown block (type 66 block) has fifty rows of four contacts, or
pins. Wires are pushed, or “punched down,” onto a pin to make electrical
contact using a special tool called a punchdown tool.
Repeater —A network device used to amplify and retransmit LAN packets.