Glossary - Acronyms
- Ω: Ohm
- µm: Micron; one millionth of a meter (0.000001); also micrometer
- ACR: Attenuation-to-crosstalk ratio
- ADO: Auxiliary disconnect outlet
- ADSL: Asynchronous Digital Subscriber Line
- ANSI: American National Standards Institute
- ATM: Asynchronous transfer mode
- AWG: American wire gauge
- BD: Building distributor
- BER: Bit Error Rate
- BFOC: Bayonet Fiber Optic Connector
- CD: Campus distributor
- CDDI® : Copper Distributed Data Interface
- CM: Common mode
- CP: Consolidation point
- CPE: Customer premises equipment
- CSA: Canadian Standards Association
- DD: Distribution device
- EF: Entrance facility
- EIA: Electronic Industries Alliance
- ELFEXT: Equal level far-end crosstalk
- EMC: Electromagnetic compatibility
- EMI: Electromagnetic interference
- EMR: Electromagnetic radiation
- ER: Equipment room
- FCC: Federal Communications Commission
- FD: Floor distributor
- FDDI®: Fiber Distributed Data Interface
- FEXT: Far-end crosstalk
- FIPS PUB: Federal Information Processing Standard Publication
- FTP: Foil twisted-pair
- GHz: Gigahertz
- Gb/s: Gigabit or "gig" per second as in 10 Gig Ethernet
- HC: Horizontal cross-connect
- HVAC: Heating, ventilation and air conditioning
- Hz: Hertz
- IC: Intermediate cross-connect
- IDC: Insulation displacement connection
- IDF: Intermediate Distribution Frame
- IEC: International Electrotechnical Commission
- IEEE®: Institute of Electrical and Electronic Engineers®
- ISDN: Integrated Services Digital Network
- ISO: International Standards Organization
- JTC: Joint technical committee
- KTS: Key telephone system
- Kb/s: Kilobit per second
- Km: Kilometer
- LAN: Local area network
- LEC: Local exchange carrier
- LED: Light emitting diode
- MC: Main cross-connect
- MDF: Main distribution frame
- MHz: Megahertz
- MHz*km: Megahertz kilometer
- MT-RJ: Mechanical Transfer Registered Jack
- Mb/s: Megabits per second
- MuTOA: Multi-user Telecommunications Outlet Assembly
- NEC®: National Electrical Code®
- NEMA®: National Electrical Manufacturers Association®
- NEXT: Near-end crosstalk
- NFPA®: National Fire Protection Association®
- PBX: Private branch exchange
- PVC: Polyvinyl chloride
- RF: Radio frequency
- RMS: Rack mount space
- SC: Subscriber connector
- SOHO: Small office home office
- STP: Shielded twisted-pair
- ScTP: Screened twisted-pair
- TIA: Telecommunications Industry Association
- TO: Telecommunications outlet
- TP: Transition point
- TP-PMD: Twisted-Pair Physical Media Dependent
- TPDDI®: Twisted-Pair Distributed Data Interface
- TSB: Telecommunications System Bulletin
- UL®: Underwriters Laboratories Inc.®
- UPS: Uninterruptible power supply
- USOC: Universal Service Order Code
- UTP: Unshielded twisted-pair
- Vrms: Volts root mean square
- WA: Work area
- b/s: Bits per second
- dB: Decibel
- ft: Feet
- lbf: Pounds force
- lx: Lux
- m: Meter
- mm: Millimeter
- nm: Nanometer
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