Fluke CableAnalyzer DSP-4000 Series, User Manual

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DSP-4000 Series
Users Manual
C-10
Segment
A network cable terminated at both ends. Segments can be joined together using repeaters
or bridges.
Serial Data Transmission
The transmission of data over a single wire.
Shielded Twisted Pair
Twisted pair cable surrounded by a metalic shield that reduces electrical interference on
the cable. Originally referred to shielded twisted pair IBM

cable with an impedance of
150
Ω
.
Skin Effect
The tendency of current to flow only near the surface of a conductor. This effect becomes
more pronounced at higher frequencies.
Split Pair
A wiring error in twisted pair cable where a wire from one cable pair is twisted with a wire
from another cable pair. Though the pin-to-pin connections may be correct, splitting the
cable pairs causes excessive crosstalk because the electromagnetic fields around the wires
cannot cancel properly.
Star Topology
A network design in which each node is connected to a central hub.
Terminator
A resistor connected to the end of a coaxial cable. The terminator, which is intended to
match the characteristic impedance of the cable, eliminates signal reflections by dissipating
signals in the cable.
Token Ring
A local area network that is arranged in a ring or star topology and uses token passing to
control access.