| 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 |
