1. Application – A system of transmission method of which is supported by telecommunications cabling such as 100base-Tx Ethernet or digital voice over IP.
2. Unshielded twisted pair – Twisted pair cabling is a type of wiring in which two conductors are twisted.
3. Shielded twisted pair – Twisted pair cabling is a type of wiring in which two conductors are twisted
4. Fiber optic cable – a cable made of optical fibers that can transmit large amounts of information at the speed of light.
5. Dark fiber – Dark fiber or unlit fiber is unused optical fibers available for use in fiber optic communications.
6. Coaxial cable – a transmission medium used for high frequency signals.
7. Plenum – Plenum cable is cable that is laid in the plenum spaces of buildings.
8. Riser – A type of inside cable intended for use in non-plenum vertical applications such as between floors of a building.
9. Rip cord – a parallel cord of strong yarn that is situated under the jacket of the cable for the purpose of facilitating jacket removal.
10. Core – The conductors of the cable.
11. Attenuation – weakening of force or intensity.
12. Noise – Anything that interferes with or slows down the clarity or accuracy of communications.
13. Headroom – Attenuation to crosstalk ratio.
14. ANSI – American National Standards Institute
15. NFPA – National Fire Protection Association
16. FCC – Federal Communications Commission
17. NIST – National Institute of Standards and Technology
18. OSHA – Occupational Safety and Health Administration
19. Equipment room – a room or space inside a building for the storage or installation of mechanical/electrical devices.
20. Topology - the physical or logical layout of a network