It is usual today for initials to replace a set of words, and these abbreviations can cause great confusion. Some of the abbreviations commonly found in data cabling and networks are given in Table 9.4. Many of them originate in the USA.

Table 9.4 - Some abbreviations used in data cabling
ACR Attenuation-to –crosstalk ratio
ANSI American National Standards Institute
ATR Attenuation-to –crosstalk ratio
AWG American wire gauge
BD Building distributor
BFOC Bayonet fibre optic connector
CD Campus distributor
CDDI Copper distributed data interface
CP Consolidation point
CPE Consumer premises equipment
CSA Canadian Standards Association
dB Decibel
DP Demarcation point
EIA Electronic Industries Alliance
ELFEXT Equal level far-end crosstalk
EMC Electromagnetic compatibility
EMI Electromagnetic interference
EMR Electromagnetic radiation
ER Equipment room
ESD Electrostatic discharge damage
FCC Federal Communications Commission
FD Floor distributor
FEXT Far-end crosstalk
FRNC Flame-retardant non-corrosive
FTP Foil twisted-pair
HC Horizontal cross-connect
IC Intermediate cross-connect
IDC Insulation displacement connection
IEC International electrotechnical commission
ISD Integrated services digital network
ISO International standards organisation
KTS Key telephone system
LAN Local area network
LCL Longitudinal conversion loss
LEC Local exchange carrier
LED Light emitting diode
LFH Low fire hazard
LSOH Low smoke zero halogen
MC Main cross-connect
NEMA National Electrical Manufacturers Association
NEXT Near-end crosstalk
NFPA National Fire Protection Association
NVP Nominal phase velocity of propagation
PBX Private branch exchange
PE Polyethylene
PIMF Pair in metal foil
PP Patch panel
PVC Polyvinyl chloride
RF Radio frequency
RMS Rack mount space
SC Subscriber connector
ScTP Screened twisted-pair
STP-A Shielded twisted-pair
S/FTP Foil and braid twisted-pair
STP Shielded twisted-pair
TC Telecommunications closet
TDM Time division multiplexing
TIA Telecommunications Industry Association
TO Telecommunications outlet
TP Transition point
UPS Uninterruptible power supply
UTP Unshielded twisted-pair
WA Work area
WAN Wide area network
WDM Wave division multiplexing
X Cross-connect

Extracted from The Electricians Guide Fifth Edition
by John Whitfield

Published by EPA Press
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Click here for list of abbreviations