ANSI: American National Standards Institute American National Standards Institute

AU:Administration Unit

AUG:Administration Unit Group

BAC: Building Automation & Control net

B-ISDN: Brand band ISDN Broadband Integrated Services Digital Network

BMS: Building Management System Intelligent Building Management System

CD:Campus Distributor

ER: Equipment Room

FCC:Fire Alarm System

FCS: Field Control System Fieldbus

FDDI: Fiberdistributed Data Interface fiber optic cable distributed data interface.

FDMA: Frequency Division Multiple Access

FPD: Fire Public Derice

FTTB: Fiber To The Building

FTTC: Fiber To The Curb Fiber To The Curb

FTTH: Fiber To The Home

FW:fire Wall Firewall

PACR: Attonation to Crosstalk Ratio attenuation and crosstalk ratio.

GC:Generic Cabling

GSM: Global System for Mobile communications

HFC:Hybrid fiber coax fiber-coaxial cable hybrid system

I:Interference crosstalk

IA: Intruder Alarm

IB: Intelligent Building

ICMP: Internet Control Message Protocol

IDC:Insucation Displacement Connection

IDF: Intermediate Distribution Frame

IDS: Industrial Distribution System Industrial wiring system

IMA: Interactive Multimedia Association Interactive Multimedia Protocol

IN:Information Network

IO: Information Outlet information outlet

IT:Information Technology

ITU: International Telecommunications Union

LE: Local Exchange

MDF: Main Distribution Frame

MIC: Mediu Interface Connector

MIO: Multiuser Information Outlet

MMO: Multionedia Outlet

MN-NES: MN-Network Element System Network element management system

MN-RMS: MN-Region Management System Network Management System

MO: Managed Object management object.