Abbreviations 2017-06-21T15:29:26+00:00

Abbreviations

AHJ
authority having jurisdiction
NEMA
National Electrical Manufacturers Assoc.
ANSI
American National Standards Institute
NEXT
near-end crosstalk
AWG
American Wire Gauge
NESC
National Electrical Safety Code
BICSI
Building Industry Consulting Service Int
NFPA
National Fire Protection Assoc.
BNC
bayonet Neil-Concelman/ navel connector
OC
optical carrier
CCTV
closed-circuit television
PBX
private branch exchange
CEC
Canadian Electrical Code, Part I
PCB
printed circuit board
CER
common equipment room
PDU
power distribution unit
CPU
central processing unit
PVC
polyvinyl chloride
CSA
Canadian Stands Association Int.
RFI
radio frequency interference
DSX
digital signal cross-connect
RH
relative humidity
EDA
equipment distribution area
SAN
storage area network
EIA
Electronic Industries Alliance
ScTP
screened twisted-pair
EMI
electromagnetic interference
SDH
synchronous digital hierarchy
EMS
energy management system
SONET
synchronous optical network
FDDI
fiber distributed data interface
STM
synchronous transport model
HC
horizontal cross-connect
TIA
Telecommunications Industry Assoc
HDA
horizontal distribution area
TR
telecommunications room
HVAC
heating, ventilation and air conditioning
UL
Underwriters Laboratories Inc
IDC
insulation displacement contact
UPS
uninterruptible power supply
LAN
local area network
UTP
unshielded twisted-pair
MC
main cross-connect
WAN
wide area network
MDA
main distribution area
ZDA
zone distribution area
NEC
National Electrical Code
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