Appendix E
Glossary
Page E-13
TDR - Time Domain Reflectometry, a technique for measuring
cable lengths by timing the duration between an incident
pulse and the reflected pulse from an impedance
discontinuity on a cable.
Telecommunications closet - A room used to interconnect
horizontal cable links to communication distribution
equipment. Also called wiring closet.
Terminator - A connection to the end of a cable which is intended
to match the characteristic impedance of the cable.
Thicknet - 10BASE5, Ethernet.
Thinnet - 10BASE2, Ethernet. Sometimes called Cheapnet.
TIA - Telecommunications Industry Association.
Tip - One conductor of a twisted-pair cable.
Token - A sequence of bits transmitted over a Ring or Bus network
used to signify permission to transmit.
TP-PMD - Twisted Pair Physical Media Dependent. A variation of
the FDDI standard (ANSI X3T9.5) adapted for 100 Mbs
data transmission on twisted-pair cable. Also called CDDI.
Traffic - Data transmission activity on a network.
Transceiver - A station access unit for coax networks.
Transceiver Cable - Cable used to attach a device to an Ethernet
segment.
Tree - LAN topology where the cable branches from a headend.
Twinaxial Cable - A cable typically used for connecting IBM
systems 36/38 and AS400 equipment. Consists of two center
copper conductors surrounded by insulation material, a
braided wire mesh shield and an outer protective jacket.
Twisted Pair - A transmission medium using a pair of wires that
are twisted together.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com