CH AA - ACRONYMS AND ABBREVIATIONS Flashcards

1
Q

A/D

A

Analog-to-Digital

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2
Q

A&E

A

Architecture and Engineering

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3
Q

ABA

A

Architectural Barriers Act

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4
Q

ac

A

Alternating Current

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5
Q

ACEG

A

Alternating Current Equipment Ground

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6
Q

ACK

A

Acknowledgment

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7
Q

ACL

A

Access Control List

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8
Q

ACR

A

Attenuation-to-Crosstalk Ratio

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9
Q

ACRF

A

Attenuation-to-Crosstalk Ratio, far-end

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10
Q

ACS

A

Access Control System

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11
Q

ACWP

A

Actual Cost of Work Performed

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12
Q

ADA

A

Americans with Disabilities Act

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13
Q

ADAAG

A

Americans with Disabilities Act Accessibility Guidelines

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14
Q

ADF

A

Area Distribution Facility

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15
Q

ADO

A

Auxiliary Disconnect Outlet

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16
Q

ADPCM

A

Adaptive Differential Pulse Code Modulation

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17
Q

ADR

A

Alternative Dispute Resolution

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18
Q

ADSL

A

Asymmetric Digital Subscriber Line

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19
Q

ADSS

A

All-Dielectric Self-Support

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20
Q

AEC

A
  • Acoustic Echo Canceller

- Architecture, Engineering, and Construction

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21
Q

AES

A

Advanced Encryption Standard

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22
Q

AF

A

Audio Frequency

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23
Q

AFEXT

A

Alien Far-End Crosstalk

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24
Q

AFF

A

Above Finished Floor

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25
Q

AGC

A

Automatic Gain Control

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26
Q

AHJ

A

Authority Having Jurisdiction

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27
Q

AHU

A

Air Handling Unit

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28
Q

AI

A
  • Analog Input

- Articulation Index

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29
Q

AIM

A

Automated Infrastructure Management

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30
Q

AM

A

Amplitude Modulation

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31
Q

AMES

A

Architectural, Mechanical, Electrical, Structural

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32
Q

AMI

A

Alternate Mark Inversion

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33
Q

AMSL

A

Above Mean Sea Level

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34
Q

ANEXT

A

Alien Near-End Crosstalk

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35
Q

AO

A

Analog Output

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36
Q

AP

A
  • Access Point

- Access Provider

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37
Q

APC

A

Angle Physical Contact

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38
Q

API

A

Application Programming Interface

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39
Q

AS

A

Australian Standard

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40
Q

ASCII

A

American Standard Code for Information Interchange

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41
Q

ASP

A

Authorized Service Provider

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42
Q

ATM

A
  • Asynchronous Transfer Mode

- Automatic Teller Machine

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43
Q

ATR

A

All-Thread-Rod

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44
Q

ATS

A

Automatic Transfer Switch

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45
Q

AUTONEG

A

Autonegotiation

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46
Q

AV

A

Audiovisual

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47
Q

AWG

A

American Wire Gauge

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48
Q

AWS

A

Advanced Wireless Services

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49
Q

AXT

A

Alien Crosstalk

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50
Q

BACnet®

A

Building Automation and Control Network

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51
Q

BAS

A

Building Automation System

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52
Q

BBC

A

Backbone Bonding Conductor

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53
Q

BBMD

A

BACnet® Broadcast management Device

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54
Q

BC

A

Bonding Conductor

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55
Q

BCT

A

Bonding Conductor for Telecommunications

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56
Q

BCWP

A

Budgeted Cost of Work Performed

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57
Q

BCWS

A

Budgeted Cost of Work Scheduled

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58
Q

BD

A

Building Distributor

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59
Q

BDA

A

Bidirectional Amplifier

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60
Q

BDSL

A

Bit Rate Digital Subscriber

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61
Q

BER

A

Bit Error Rate

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62
Q

BET

A

Building Entrance Terminal

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63
Q

BIBB

A

BACnet® Interoperability Building Block

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64
Q

BIM

A

Building Information Modeling

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65
Q

BMS

A

Building Management System

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66
Q

BN

A

Bonding Network

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67
Q

BNC

A

Bayonet Neill-Concelman

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68
Q

BOM

A

Bill of Material

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69
Q

BPSK

A

Binary Phase Shift Keying

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70
Q

BRI

A

Basic Rate Interface

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71
Q

BSC

A

Base Station Controller

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72
Q

BSS

A

Basic Service Set

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73
Q

BTL

A

BACnet® Testing Laboratories

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74
Q

BTS

A

Basic Transceiver Station

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75
Q

BVLL

A

BACnet® Virtual Link Layer

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76
Q

C

A

Chrominance Signal

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77
Q

CAD

A

Computer-Aided Design

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78
Q

CADD

A

Computer-Aided Drafting and Design

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79
Q

CAFM

A

Computer-Aided Facility Management

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80
Q

CAN

A

Campus Area Network

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81
Q

CAP

A

Carrierless Amplitude and Phase

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82
Q

CAT

A

Category

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83
Q

CATV

A

Cable TV

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84
Q

CBC

A

Coupled Bonding Conductor

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85
Q

CBN

A

Common Bonding Network

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86
Q

CBS

A

Core Bore Seal

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87
Q

CCD

A

Charge Coupled Device

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88
Q

CCK

A

Complimentary Code Keying

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89
Q

cct

A

Circuit (European)

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90
Q

CCTV

A

Closed Circuit TV

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91
Q

CCU

A
  • Coronary Care Unit

- Critical Care Unit

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92
Q

cd

A

Candela

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93
Q

CD

A
  • Campus Distributor

- Construction Document

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94
Q

CDF

A

Campus Distribution Facility

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95
Q

CDMA

A

Code Division Multiple Access

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96
Q

CE

A
  • Common Element

- Conformité Européene

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97
Q

CEBus®

A

Consumer Electronics Bus

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98
Q

CENELEC

A

Comité Européen de Normalisation Electrotechnique

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99
Q

CENTREX

A

Central Exchange

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100
Q

CER

A

Common Equipment Room

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101
Q

CEV

A

Controlled Environment Vault

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102
Q

CFR

A

Code of Federal Regulations (U.S.)

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103
Q

CHCC

A

Comprehensive Health Care Clinic

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104
Q

C/I

A

Carrier-to-Interface Ratio

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105
Q

CI

A

Circuit Integrity

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106
Q

CIA

A

Confidentiality, Integrity, and Availability

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107
Q

CIC

A

CEBus® Industry Council

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108
Q

CII

A

Critical Infrastructure Industry

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109
Q

CIS

A

Common Intelligibility Scale

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110
Q

ckt

A

Circuit (U.S.)

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111
Q

CLEC

A

Competitive Local Exchange Carrier

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112
Q

CM

A
  • Common Mode
  • Construction Manager
  • Control Module
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113
Q

CMP

A

Communications Plenum

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114
Q

CMR

A

Communications Riser

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115
Q

CMRR

A

Common-Mode Rejection Ratio

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116
Q

CMU

A

Concrete Masonry Unit

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117
Q

CMUC

A

Communications Undercarpet

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118
Q

CMX

A

Communications Residential

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119
Q

CO

A
  • Central Office

- Change Order

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120
Q

CON

A

Certificate of Need

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121
Q

COR

A

Close Observation Room

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122
Q

COT

A

Central Office Terminal

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123
Q

CP

A

Consolidation Point

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124
Q

CPE

A

Customer Premises Equipment

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125
Q

CPI

A

Cost Performance Index

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126
Q

CPM

A

Critical Path Method

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127
Q

CPU

A

Central Processing Unit

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128
Q

CPVC

A

Chlorinated Polyvinyl Chloride

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129
Q

CR

A

Computer Room

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130
Q

CRAC

A

Computer Room Air Conditioning

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131
Q

CRC

A

Cyclic Redundancy Check

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132
Q

CRI

A

Color Rendition Index

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133
Q

CRO

A

Construction Ride Out

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134
Q

CRT

A

Cathode Ray Tube

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135
Q

CSI

A

Construction Specifications Institute

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136
Q

CSMA/CA

A

Carrier Sense Multiple Access with Collision Avoidance

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137
Q

CSMA/CD

A

Carrier Sense Multiple Access with Collision Detection

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138
Q

CSU

A

Channel Service Unit

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139
Q

CTCSS

A

Continuous Tone Coded Squelch System

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140
Q

CTR

A

Common Telecommunications Room

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141
Q

CTS

A

Clear to Send

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142
Q

CUE

A

Concrete Universal Enclosure

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143
Q

CWDM

A

Coarse Wavelength Division Multiplexing

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144
Q

D/A

A

Digital-to-Analog

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145
Q

DA

A
  • Distributed Automation

- Distribution Amplifier

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146
Q

DAC

A

Direct Attach Cable

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147
Q

DACR

A

Digital Alarm Communicator Receiver

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148
Q

DACS

A

Digital Alarm Communicator System

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149
Q

DACT

A

Digital Alarm Communicator Transmitter

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150
Q

DARR

A

Digital Alarm Radio Receiver

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151
Q

DARS

A

Digital Alarm Radio System

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152
Q

DART

A

Digital Alarm Radio Transmitter

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153
Q

DAS

A
  • Direct-Attached Storage

- Distributed Antenna System

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154
Q

DAQ

A

Delivered Audio Quality

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155
Q

DB

A

Design-Build

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156
Q

dBa

A

A-Weighted Decibel

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157
Q

dBd

A

Decibels Related to a Half Wavelength Dipole

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158
Q

dBi

A

Decibels Related to an Isotropic Radiator

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159
Q

DBS

A

Direct Broadcast Satellite

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160
Q

dBu

A

Decibel Unit

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161
Q

dc

A

Direct Current

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162
Q

DCIE

A

Data Center Infrastructure Efficiency

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163
Q

DCS

A

Digital Cellular System

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164
Q

DD

A
  • Design Development
  • Design Document
  • Distribution Device
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165
Q

DDC

A

Direct Digital Control

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166
Q

DDS

A

Dynamic Digital Signage

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167
Q

DECT

A

Digital Enhanced Cordless Telecommunications

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168
Q

DEPIC

A

Dual Expanded Plastic Insulated Conductor

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169
Q

DHCP

A

Dynamic Host Configuration Protocol

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170
Q

DI

A

Digital Input

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171
Q

DTC

A

Data Link Control

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172
Q

DM

A

Differential Mode

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173
Q

DMD

A

Differential Mode Delay

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174
Q

DMT

A

Discrete Multitone

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175
Q

DMVPN

A

Dynamic Multipoint Virtual Private Network

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176
Q

DMZ

A

Demilitarized Zone

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177
Q

DNR

A

Digital Noise Reduction

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178
Q

DO

A

Digital Output

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179
Q

DoS

A

Denial of Service

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180
Q

DP

A

Demarcation Point

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181
Q

DS

A
  • Digital Signal

- Distribution System

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182
Q

DS0

A

Digital Signaling Level Zero

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183
Q

DS1

A

Digital Signal Level One

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184
Q

DS1C

A

Digital Signal Level One C

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185
Q

DS2

A

Digital Signal Level Two

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186
Q

DS3

A

Digital Signal Level Three

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187
Q

DSL

A

Digital Subscriber Line

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188
Q

DSP

A

Digital Signal Processor

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189
Q

DSS

A

Digital Satellite Signal

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190
Q

DSSS

A

Direct Sequence Spread Spectrum

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191
Q

DSU

A

Data Service unit

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192
Q

DSX

A

Digital Signal Cross-Connect

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193
Q

DTE

A

Data Terminal Equipment

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194
Q

DTV

A

Digital TV

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195
Q

DVB

A

Digital Video Broadcast

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196
Q

DVD

A

Digital Versatile Disk

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197
Q

DVI-A

A

Digital Visual Interface - Analog

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198
Q

DVI-D

A

Digital Visual Interface - Digital

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199
Q

DVI-I

A

Digital Visual Interface - Integrated

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200
Q

DVMS

A

Digital Video Management System

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201
Q

DVR

A

Digital Video Recorder

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202
Q

DVT

A

Digital Video Technology

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203
Q

E&O

A

Errors and Omissions

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204
Q

E/O

A

Electronic-to-Optical

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205
Q

EAC

A

Electronic Access Control

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206
Q

Eb/NO

A

Energy Per Bid to Noise Density Ratio

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207
Q

EBC

A

Equipment Bonding Conductor

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208
Q

ECTFE

A

Ethylene Chlorotrifluoroethylene

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209
Q

EDA

A

Equipment Distribution Area

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210
Q

EDP

A

Electrical Distribution Panel

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211
Q

EEA

A

European Economic Area

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212
Q

EESS

A

Earth Exploration-Satellite Service

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213
Q

EF

A

Entrance Facility

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214
Q

EFM

A

Ethernet in the First Mile

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215
Q

EFT

A

Electrical Fast Transient

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216
Q

EHF

A

Extremely High Frequency

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217
Q

EIA

A

Electronic Industries Alliance

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218
Q

EIRP

A
  • Effective Isotropic Radiated Power

- Equivalent Isotropic Radiated Power

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219
Q

ELF

A

Extremely Low Frequency

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220
Q

ELFEXT

A

Equal Level Far-End Crosstalk

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221
Q

EM

A

Electromagnetic

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222
Q

EMB

A

Effective Modal Bandwidth

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223
Q

EMC

A

Electromagnetic Compatibility

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224
Q

EMI

A

Electromagnetic Interference

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225
Q

EMP

A

Electromagnetic Pulse

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226
Q

EMR

A

Electromagnetic Radiation

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227
Q

EMS

A
  • Emergency Medical Service

- Energy Management System

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228
Q

EMT

A

Electrical Metallic Tubing

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229
Q

ENI

A

External Network Interface

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230
Q

ENT

A

Electrical Non-Metallic Tubing

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231
Q

EO

A

Electrical Outlet

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232
Q

EoDSL

A

Ethernet Over Digital Subscriber Line

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233
Q

EOLR

A

End-of-Line Resistor

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234
Q

EP

A

Entrance Point

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235
Q

EPO

A

Emergency Power Off

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236
Q

EPON

A

Ethernet Passive Optical Network

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237
Q

EPR

A

Earth Potential Rise

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238
Q

EQ

A

Equalizer

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239
Q

ER

A

Equipment Room

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240
Q

ERP

A

Effective Radiated power

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241
Q

ERRCS

A

Emergency Responder Radio Coverage Systems

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242
Q

ESD

A

Electrostatic Discharge

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243
Q

ESF

A

Extended Superframe

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244
Q

ESMR

A

Enhanced Specialized Mobile Radio

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245
Q

ESN

A

Electronic Serial Number

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246
Q

ESS

A
  • Electronic Security and Safety

- Electronic Service Set

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247
Q

ETSI

A

European Telecommunications Standards Institute

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248
Q

ETL

A

Electronic Testing Laboratories (Intertek)

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249
Q

EV

A

Earned Value

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250
Q

F/UTP

A

Foil Screened With Unshielded Twisted-Pairs

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251
Q

FA

A

Fire Alarm

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252
Q

FACP

A

Fire Alarm Control Panel

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253
Q

FAX

A

Facsimile

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254
Q

FC

A
  • Ferrule Connector
  • Fiber Connector
  • Fixed Connector
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255
Q

FCC

A

Federal Communications Commission

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256
Q

FCS

A

Frame Check Sequence

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257
Q

FD

A

Floor Distributor

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258
Q

FDDI

A

Fiber Distributed Data Interface

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259
Q

FDM

A

Frequency Division Multiplexing

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260
Q

FEC

A

Forward Error Correction

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261
Q

FEP

A

Fluorinated Ethylene Propylene

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262
Q

FEXT

A

Far-End Crosstalk

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263
Q

FHSS

A

Frequency-Hopping Spread Spectrum

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264
Q

FirstNet

A

First Responder Network Authority

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265
Q

FIT

A

Frame Interline Transfer

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266
Q

FLA

A

Flooded Lead Acid

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267
Q

FLS

A

Fire-Life-Safety

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268
Q

FM

A

Frequency Modulation

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269
Q

FMC

A

Flexible Metal Conduit

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270
Q

FMT

A

Flexible Metal Tubing

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271
Q

FO

A
  • Fiber Optic

- Field Order

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272
Q

FOV

A

Field of View

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273
Q

F-PDCH

A

Forward Packet Data Channel

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274
Q

FR

A

Fire Retardant

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275
Q

FRS

A

Family Radio Service

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276
Q

FS

A
  • Factor of Safety

- Fixed Service

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277
Q

FSO

A

Free Space Optics

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278
Q

FTC

A

Failure to Capture

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279
Q

FTP

A
  • File Transfer Protocol

- Foil Twisted-Pair

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280
Q

FTTH

A

Fiber To The Home

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281
Q

FTTO

A

Fiber To The Office

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282
Q

FTTx

A

Fiber To The X

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283
Q

FWHM

A

Full Width Half Maximum

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284
Q

G

A

Conductance

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285
Q

GAN

A

Global Area Network

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286
Q

GbE

A

Gigabit Ethernet

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287
Q

GC

A

General Contractor

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288
Q

GE

A

Grounding Equalizer

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289
Q

GEC

A

Grounding Electrode Conductor

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290
Q

GFCI

A

Ground Fault Circuit Interrupter

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291
Q

GIS

A

Geographic Information System

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292
Q

GMP

A

Guaranteed Maximum Price

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293
Q

GPON

A

Gigabit Passive Optical Network

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294
Q

GPR

A
  • Ground Penetrating Radar

- Ground Potential Rise

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295
Q

GSM

A

Global System for Mobile Communications

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296
Q

GUI

A

Graphical User Interface

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297
Q

HAAT

A

Height Above Average Terrain

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298
Q

HC

A

Horizontal Cross-Connect

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299
Q

HCP

A

Horizontal Connection Point

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300
Q

HD

A

High Definition

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301
Q

HDA

A

Horizontal Distribution Area

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302
Q

HDMI

A

High-Definition Multimedia Interface

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303
Q

HDPE

A

High Density Polyethylene

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304
Q

HDSDI

A

High-Definition Serial Digital Interface

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305
Q

HDSL

A

High Bit-Rate Digital Subscriber Line

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306
Q

HDTV

A

High Definition TV

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307
Q

HF

A

High Frequency

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308
Q

HFC

A

Hybrid Fiber-Coax

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309
Q

HH

A

Handhole

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310
Q

HIPAA

A

Health insurance Portability and Accountability Act of 1996

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311
Q

Hostid

A

Host Identification

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312
Q

HR

A

Human Resources

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313
Q

HR/DSSS

A

High Rate Direct Sequence Spread Spectrum

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314
Q

HSAB

A

high-Speed Air Blown (Procedure)

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315
Q

HSPDA

A

High-Speed Downlink Packet Access

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316
Q

HTTP

A

Hypertext Transfer Protocol

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317
Q

HVAC

A

Heating, Ventilation, and Air-Conditioning

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318
Q

I/O

A

Input/Output

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319
Q

I

A
  • Current

- In-Phase Signal

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320
Q

IAPP

A

Interaccess Point Protocol

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321
Q

IB

A

Intelligent Building

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322
Q

IBC

A

International Building Code

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323
Q

IBM

A

Isolated Bonding Network

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324
Q

IBSS

A

Independent Basic Service Set

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325
Q

IC

A
  • Integrated Circuit

- Intermediate Cross-Connect

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326
Q

ICT

A

Information and Communications Technology

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327
Q

ICU

A

Intensive Care Unit

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328
Q

ID

A
  • Identifier
  • Inside Diameter
  • Intelligent Device
  • Intermediate Distributor
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329
Q

IDC

A
  • Initiating Device Circuit

- Insulation Displacement Connector

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330
Q

IDF

A

Intermediate Distribution Frame

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331
Q

IDS

A

Intrusion Detection System

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332
Q

IEC

A

International Electrotechnical Commission

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333
Q

IESS

A

Integrated Electronic Security Systems

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334
Q

IETF

A

Internet Engineering Task Force

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335
Q

IF

A

Intermediate Frequency

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336
Q

IFC

A

Intrafacility Cabling

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337
Q

IG

A

Isolated Ground

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338
Q

ILEC

A

Incumbent Local Exchange Carrier

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339
Q

IMC

A

Intermediate Metal Conduit

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340
Q

IOR

A

Index of Refraction

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341
Q

IoT

A

Internet of Things

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342
Q

IP

A
  • Ingress Protection (e.g., IP52)

- Internet Protocol

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343
Q

IPD

A

Integrated Project Delivery

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344
Q

IPsec

A

Internet Protocol Security

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345
Q

IPTS

A

Interactive Patient TV System

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346
Q

IR

A
  • Infrared

- Insulation Resistance

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347
Q

ISDN

A

Integrated Services Digital Network

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348
Q

ISM

A

Industrial, Scientific, and Medical

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349
Q

ISO

A

International Organization for Standardization

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350
Q

ISOC

A

Internet Society

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351
Q

ISP

A
  • Inside Plant

- Internet Service Provider

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352
Q

IT

A

Information Technology

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353
Q

ITB

A

Invitation to Bid

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354
Q

ITE

A

Information Technology Equipment

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355
Q

ITS

A

Information Technology System

356
Q

ITU

A

International Telecommunications Union

357
Q

IW

A

Inside Wire

358
Q

JCAHO

A

Joint Commission on Accreditation of Healthcare Organizations

359
Q

JIS

A

Japanese Industrial Standard

360
Q

JPEG

A

Joint Photographic Experts Group

361
Q

KSU

A

Key Service Unit

362
Q

KTS

A

Key Telephone System

363
Q

KVM

A

Keyboard/Video/Mouse

364
Q

L2TP/IPSec

A

Layer 2 Tunneling Protocol / Internet Protocol Security

365
Q

LAD

A

Link Access Device

366
Q

LC

A

Latching Connector

367
Q

LCD

A

Liquid Crystal Display

368
Q

LCE

A

Limited Common Element

369
Q

LCX

A

Leaky Coaxial

370
Q

LD

A

Laser Diode

371
Q

LDP

A

Local Distribution Point

372
Q

LEC

A

Line Echo Canceller

373
Q

LEC

A

Local Exchange Carrier

374
Q

LED

A

Light-Emitting Diode

375
Q

LEED

A

Leadership in Energy and Environmental Design

376
Q

LF

A

Low Frequency

377
Q

LiDAR

A

Light Imaging Detection and Ranging

378
Q

LLC

A

Logical Link Control

379
Q

LMDS

A

Local Multipoint Distribution Service

380
Q

LMR

A

Land Mobile Radio

381
Q

LMS

A

Land Mobile Service

382
Q

locap

A

Low-Capacitance

383
Q

LORAN

A

Long Range Navigation

384
Q

LoS

A

Line of Sight

385
Q

LOTO

A

Lock Out - Tag Out

386
Q

LP

A

Low Pressure

387
Q

LPC

A

License Plate Capture

388
Q

LPDA

A

Log-Periodic Dipole Array

389
Q

LPR

A

License Plate Recognition

390
Q

LS0H

A

Low Smoke Zero Halogen

391
Q

LSA

A

Lotfrei Schraubfei Abisolierfrei

392
Q

LSZH

A

Low Smoke Zero Halogen

393
Q

LT

A

Liner Terminal

394
Q

LVD

A

Low Voltage Disconnect

395
Q

LW

A

Long Wavelength

396
Q

LWAPP

A

Lightweight Access Point Protocol

397
Q

MAC

A
  • Media Access Control

- Move, Add, and Change

398
Q

MAHO

A

Move Assisted Handoff

399
Q

MAN

A

Metropolitan Area Network

400
Q

MAP

A

Mobile Application Part

401
Q

MC

A
  • Main Cross-Connect

- Metal Clad

402
Q

MCC

A

Motor Control Center

403
Q

MC-CDMA

A

Multi-Carrier Code Division Multiple Access

404
Q

MCU

A

Master Control Unit

405
Q

MD

A

Main Distributor

406
Q

MDA

A

Main Distribution Area

407
Q

MDI

A

Medium Dependent Interface

408
Q

MDP

A

Main Distribution Panel

409
Q

MDU

A

Multi-Dwelling Unit

410
Q

MDU-TR

A

Multi-Dwelling Unit Telecommunications Room

411
Q

MEGB

A

Main Electrical Grounding Busbar

412
Q

mesh-BN

A

Meshed Bonding Network

413
Q

MF

A

Medium Frequency

414
Q

MFD

A

Mode Field Diameter

415
Q

MGN

A

Multiground Neutral

416
Q

MH

A

Maintenance Hole

417
Q

MIB

A

Management information Base

418
Q

MICE

A

Mechanical, Ingress, Climatic/Chemical, Electromagnetic

419
Q

MIMO

A

Multiple Input Multiple Output

420
Q

MIN

A

Mobile Identification Number

421
Q

M-JPEG

A

motion-Joint Photographic Experts Group

422
Q

MLT

A

Multilevel Transmission

423
Q

MM

A

Multimode

424
Q

MMDS

A
  • Multi-Channel Multipoint Distribution Service

- Multipoint Microwave Distribution System

425
Q

MMF

A

Multimode Fiber

426
Q

MOV

A

Metal Oxide Varistor

427
Q

MP3

A

Moving Picture Experts Group Layer 3

428
Q

MPEG

A

Moving Picture Expert Group

429
Q

MPO

A

Multifiber Push-On

430
Q

MPOE

A

Minimum Point of Entry

431
Q

MPP

A

Modular Patch Panel

432
Q

MPTL

A

Modular Plug Terminated Link

433
Q

MRE

A

Make Ready Engineering

434
Q

MRI

A

Magnetic Resonance imaging

435
Q

MS

A

Mobile Station

436
Q

MSC

A

Mobile Switching Center

437
Q

MSDS

A

Material Safety Data Sheet

438
Q

MSS

A

Meteorological-Satellite Service

439
Q

MTBF

A

Mean Time Between Failure

440
Q

MTTR

A

Mean Time to Repair

441
Q

MUTOA

A

Multi-User Telecommunications Outlet Assembly

442
Q

NA

A

Numerical Aperture

443
Q

NAC

A
  • Network Admission Control

- Notification Appliance Circuit

444
Q

NAS

A

Network Attached Storage

445
Q

NC

A
  • Network Computer

- Noise Criterion

446
Q

NCS

A

National CAD Standard

447
Q

NEBS

A

Network Equipment-Building Systems

448
Q

NEC®

A

National Electrical Code®

449
Q

NEMA

A

national Electrical Manufacturers Association

450
Q

NETID

A

Network Identification

451
Q

NEXT

A

Near-End Crosstalk

452
Q

NFPA

A

National Fire Protection Association

453
Q

NI

A

Network Interface

454
Q

NIC

A

Network Interface Card

455
Q

NiCd

A

Nickel Cadmium

456
Q

NICU

A

National Intensive Care Unit

457
Q

NID

A

Network interface Device

458
Q

NIST

A

National Institute of Standards and Technology

459
Q

NMC

A

Network Management Center

460
Q

NOC

A

Network Operations Center

461
Q

NOS

A

Network Operating System

462
Q

NPLFA

A

Non-Power-Limited Fire Alarm

463
Q

NPSBN

A

Nationwide Public Safety Broadband network

464
Q

NRC

A

Noise Reduction Coefficient

465
Q

NRTL

A

Nationally Recognized Testing Laboratory

466
Q

NRZ

A

Non-Return-to-Zero

467
Q

NRZI

A

Non-Return-to-Zero Inverted

468
Q

NT

A

Network Terminal

469
Q

NTIA

A

national Telecommunications and Information Administration

470
Q

NTSC

A

National Television System Committee

471
Q

NVP

A

Nominal Velocity of Propogation

472
Q

NVR

A

Network Video Recorder

473
Q

NZS

A

New Zealand Standard

474
Q

O/E

A

optical-to-Electronic

475
Q

O&M

A

operations and Maintenance

476
Q

OBS

A

Organization Breakdown Structure

477
Q

OC

A
  • Optical Carrier

- Outlet Cable

478
Q

OCPD

A

Overcurrent Protection Devices

479
Q

OD

A

outside Diameter

480
Q

ODBC

A

Open Database Connectivity

481
Q

OEM

A

Original Equipment Manufacturer

482
Q

OET

A

Office of Engineering and Technology

483
Q

OFC

A

Optical Fiber Conductive

484
Q

OFCG

A

Optical Fiber Conductive General Purpose

485
Q

OFCP

A

Optical Fiber Conductor Plenum

486
Q

OFCR

A

Optical Fiber Conductive Riser

487
Q

OFDM

A

Orthogonal Frequency Division Multiplexing

488
Q

OFDMA

A

Orthogonal Frequency Division Multiple Access

489
Q

OFL

A

Overfilled Launch

490
Q

OFN

A

Optical Fiber Non-Conductive

491
Q

OFNG

A

Optical Fiber Non-Conductive General Purpose

492
Q

OFNP

A

Optical Fiber Non-Conductive Riser

493
Q

OLED

A

Organic Light-Emitting Diode

494
Q

OLT

A

Optical Line Terminal/Termination

495
Q

OLTS

A

Optical Loss Test Set

496
Q

OM

A

Optical Multimode

497
Q

OM1

A

Optical Multimode 1

498
Q

OM2

A

Optical Multimode 2

499
Q

OM3

A

Optical Multimode 3

500
Q

OM3

A

Optical Multimode 4

501
Q

ONT

A

Optical Network Terminal

502
Q

ONU

A

Optical Netowrk Unit

503
Q

OPM

A

Optical Power Meter

504
Q

OS

A
  • Operating System

- Optical Singlemode

505
Q

OS1

A

Optical Singlemode 1

506
Q

OS2

A

Optical Singlemode 2

507
Q

OSHA

A

Occupational Safety and Health Administration

508
Q

OSI

A

Open System Interconnection

509
Q

OSP

A
  • Office of Strategic Planning and Policy Analysis

- Outside Plant

510
Q

OSPF

A

Open Shortest Path First

511
Q

OTDR

A

Optical Time Domain Reflectometer

512
Q

PA

A
  • Average Power

- Public Address

513
Q

PABX

A

Private Automatic Branch Exchange

514
Q

PAD

A

Packet Assembler/Disassembler

515
Q

PAL

A

Phase Alternation Line

516
Q

PAM

A

Pulse Amplitude Modulation

517
Q

PAN

A

Personal Area Network

518
Q

PB

A

Polyburylene

519
Q

PB

A

Pull Box

520
Q

PBB

A

Primary Bonding Busbar

521
Q

PBCC

A

Packet Binary Convolutional Coding

522
Q

PBPP

A

Pathway Barrier Penetration Plates

523
Q

PBX

A

Private Branch Exchange

524
Q

PC

A

Physical Contact

525
Q

PCB

A

Printed Circuit Board

526
Q

PCM

A

Pulse Code Modulation

527
Q

PCS

A

Personal Communications System/Service

528
Q

PD

A

Power Device

529
Q

PDU

A
  • Power Distribution Unit

- Protocol Data unit

530
Q

PE

A
  • Polyethylene

- Professional Engineer

531
Q

PERT

A

Program Evaluation Review Technique

532
Q

PET

A

Protected Entrance Terminal

533
Q

PF

A

Power Factor

534
Q

PFAS

A

Personal Fall Arrest System

535
Q

PFM

A

Pulse Frequency Modulation

536
Q

PHY

A

Physical

537
Q

PIC

A

Plastic Insulated Conductor

538
Q

PID

A

Passive Infrared Detector

539
Q

PIN

A
  • Personal Identification Number

- Positive Intrinsic Negative

540
Q

PIR

A

Passive Infrared

541
Q

PIV

A

Personal Identification Verification

542
Q

PL

A
  • Performance level

- Power-Limited

543
Q

PLC

A

Programmable Logic Controller

544
Q

PLFA

A

Power-Limited Fire Alarm

545
Q

PM

A
  • Phase Modulation

- Project Management/Manager

546
Q

PMA

A

Physical Medium Attachment

547
Q

PMD

A

Physical Medium Dependent

548
Q

POCSAG

A

Post Office Code Standardization Advisory Group

549
Q

PoE

A

Power Over Ethernet

550
Q

POF

A

Plastic Optical Fiber

551
Q

PON

A

Passive Optical Network

552
Q

POP

A

Point of Presence

553
Q

POS

A

Point of Sale

554
Q

POT

A

Portable Operator’s Terminal

555
Q

POTS

A

Plain Old Telephone Service

556
Q

POU

A

Power Outlet Unit

557
Q

PP

A

Peak Power

558
Q

PPE

A

Personal Protective Equipment

559
Q

PPM

A

Pulse Position Modulation

560
Q

PPTP

A

Point-to-Point Tunneling Protocol

561
Q

PRCS

A

Permit Required Confined Space

562
Q

PRI

A

Primary Rate Interface

563
Q

PRR

A

Pulse Repetition Rate

564
Q

PSAACR-F

A

Power Sum Attenuation-to-Alien Crosstalk ratio at Far-end

565
Q

PSAACR-N

A

Power Sum Attenuation-to-Alien Crosstalk Ratio at Near-end

566
Q

PSACR

A

Power Sum Attenuation-to-Crosstalk Ratio

567
Q

PSACRF

A

Power Sum Attenuation-to-Crosstalk ratio-Far end

568
Q

PSAFEXT

A

Power Sum Alien Far-End Crosstalk

569
Q

PSANEXT

A

Power Sum Alien Near-End Crosstalk

570
Q

PSE

A

Power Sourcing Equipment

571
Q

PSELFEXT

A

Power Sum Equal Level Far-end Crosstalk

572
Q

PSIM

A

Physical Security information Management

573
Q

PSK

A

Phase-Shift Keying

574
Q

PSNEXT

A

Power Sum Near-end Crosstalk

575
Q

PSTN

A

Public Switched Telephone Network

576
Q

PTC

A

Positive Temperature Coefficient

577
Q

PTP

A

Point-to-Point

578
Q

PTZ

A

Pan, Tilt, Zoom

579
Q

PUC

A

Public Utilities Commission

580
Q

PUE

A

Power Usage Effectiveness

581
Q

PVC

A
  • Permanent Virtual Circuit

- Polyvinyl Chloride

582
Q

PWM

A

Pulse Width Modulation

583
Q

Q

A

Quadrature Signal

584
Q

QAM

A

Quadrature Amplitude Modulation

585
Q

QC

A

Quality Control

586
Q

QoS

A

Quality of Service

587
Q

QPSK

A

Quadrature Phase-Shift Keying

588
Q

R/W

A

Right-of-Way

589
Q

RACE

A

Rescue, Alarm, Confine, Extinguish

590
Q

RADIUS

A

Remote Authentication Dial-In User Service

591
Q

RADSL

A

Rate-Adaptive Digital Subscriber Line

592
Q

RAID

A

Redundant Array of Independent Disks

593
Q

RARSR

A

Radio Alarm Repeater Station Receiver

594
Q

RAS

A

Radio Alarm System

595
Q

RASSR

A

Radio Alarm Supervising Station Receiver

596
Q

RAT

A

Radio Alarm Transmitter

597
Q

RBB

A

Rack Bonding Busbar

598
Q

RBC

A

Rack Bonding Conductor

599
Q

REX

A

Request to Exit

600
Q

RF

A

Radio Frequency

601
Q

RFB

A

Request for Bid

602
Q

RFI

A
  • Radio Frequency Interface
  • Request for Information
  • Request for Interest
  • Request for Interpretation
603
Q

RFDI

A

Radio Frequency identification

604
Q

RFoG

A

Radio Frequency Over Glass

605
Q

RFP

A

Request For Proposal

606
Q

RFQ

A
  • Request For Qualifications

- Request For Quotation

607
Q

RG

A

Radio Grade

608
Q

RGB

A
  • Rack Grounding Busbar

- Red, Green, Blue

609
Q

RH

A

Relative humidity

610
Q

RJ

A

Registered Jack

611
Q

RL

A

Return Loss

612
Q

RMC

A

Rigid Metal Conduit

613
Q

rms

A

Room Mean Square

614
Q

RMU

A

Rack Mounted Unit

615
Q

RNC

A

Rigid Non-metal Conduit

616
Q

RO

A

Remote Office

617
Q

ROI

A

Return On Investment

618
Q

RPE

A

Radiation Pattern Envelope

619
Q

RPP

A

Remote Power Panel

620
Q

RSTP

A

Rapid Spanning Tree Protocol

621
Q

RTS

A

Request To Send

622
Q

RU

A

Rack Unit

623
Q

RZ

A

Return to Zero

624
Q

2G

A

Second Generation

625
Q

S/E

A

Signal to Error

626
Q

S/FTP

A

Screened/Foil Twisted-Pair

627
Q

S

A

Siemen

628
Q

Saas

A

Software as a Service

629
Q

SAC

A

Security and Access Control

630
Q

SAN

A

Storage Area network

631
Q

SAP

A

Service Access point

632
Q

SAT

A
  • Source Address Table

- Systems Acceptance Test

633
Q

SBB

A

Secondary Bonding Busbar

634
Q

SBG

A

Supplementary Bonding Grid

635
Q

SC

A

Subscriber Connector

636
Q

SCS

A

Structured Cabling System

637
Q

SCADA

A

Supervisory Control and Data Acquisition

638
Q

SCO

A

Synchronous Connection-Oriented

639
Q

SCSI

A

Small Computer system Interface

640
Q

ScTP

A

Screened Twisted-Pair

641
Q

SCU

A

Special Care unit

642
Q

SCUPC

A

Subscriber Connector-Ultra physical Contact

643
Q

SD

A

Schematic design

644
Q

SDH

A

Synchronous Digital Hierarchy

645
Q

SDI

A

Serial Digital Interface

646
Q

SDK

A

Software Development kit

647
Q

SDP

A

Service Discovery Profile

648
Q

SDR

A
  • Software Defined Radio

- Standard Dimension Ratio

649
Q

SDSL

A

Symmetrical Digital Subscriber line

650
Q

SECAM

A

Sequential Couleur Avec Memoire

651
Q

SF/UTP

A

Overall Braid and Foil Screened with Unshielded Twisted-Pair

652
Q

SFF

A

Small Form Factor

653
Q

SFP

A

Small Form Factor Pluggable

654
Q

SHF

A

Super High Frequency

655
Q

SI

A

International System of Units

656
Q

SIM

A

Subscriber Identity Module

657
Q

SLC

A

Signaling Line Circuit

658
Q

SM

A

Singlemode

659
Q

SMA

A

Subminiature A

660
Q

SMF

A

Singlemode Fiber

661
Q

SMR

A

Specialized Mobile Radio

662
Q

SMS

A

Short Message Service

663
Q

SNI

A

Standard Network Interface

664
Q

SNMP

A

Single Network management Protocol

665
Q

SNR

A

Signal-to-Noise Ratio

666
Q

SONET

A

Synchronous Optical Network

667
Q

SoW

A

Scope of Work

668
Q

SP

A

Service Provider

669
Q

SPD

A

Surge Protection Device

670
Q

SPF

A

Shortest Path First

671
Q

SPG

A

Single-Point Ground

672
Q

SPI

A

Schedule Performance Index

673
Q

SPL

A

Sound Pressure Level

674
Q

SPP

A

Serial Port Profile

675
Q

SRL

A

Structural Return loss

676
Q

SS7

A

Signaling System No.7

677
Q

SSB

A

Single Sideband Modulation

678
Q

SSID

A

Service Set identifier

679
Q

SSO

A

Single Sign-On

680
Q

ST

A

Straight Terminus

681
Q

STDM

A

Statistical Time Division Multiplexing

682
Q

STP

A

Shielded Twisted-Pair

683
Q

STS

A
  • Shared Tenant Service
  • Static Transfer Switch
  • Synchronous Transport Signal
684
Q

SVC

A

Switched Virtual Circuit

685
Q

SWR

A

Standing Wave Ratio

686
Q

3G

A

Third Generation

687
Q

3GPP2

A

Third Generation Partnership Project Two

688
Q

T1

A

Trunk Level 1

689
Q

T3

A

Trunk Level 3

690
Q

T&C

A

Terms and Condition

691
Q

TB

A

Terminal Block

692
Q

TBB

A

Telecommunications Bonding Backbone

693
Q

TBBIBC

A

Telecommunications Bonding Backbone Interconnecting Bonding Conductor

694
Q

TBC

A

Telecommunications Bonding Conductor

695
Q

TCP

A

Transmission Control Protocol

696
Q

TCP/IP

A

Transmission Control Protocol / Internet Protocol

697
Q

TDD

A
  • Telecommunications Device for the Deaf

- Time Division Dublex

698
Q

TDM

A

Time Division Multiplexing

699
Q

TDR

A
  • Technology Distribution Room

- Time Domain Reflectiometer

700
Q

TD-SCDMA

A

Time Division Synchronous Code Division Multiple Access

701
Q

TE

A

Telecommunications Enclosure

702
Q

TEBC

A

Telecommunications Equipment Bonding Conductor

703
Q

TEC

A

Technology Equipment Center

704
Q

TERM

A

Terminal

705
Q

TGB

A

Telecommunications Grounding Busbar

706
Q

TIA

A

Telecommunications Industry Association

707
Q

TL

A

Transmission Level

708
Q

TM

A

Trademark

709
Q

TMGB

A

Telecommunications Main Grounding Busbar

710
Q

TO

A

Telecommunications Outlet

711
Q

TP

A

Transition Point

712
Q

TP-PMD

A

Twisted-Pair Physical medium Dependent

713
Q

TR

A

Telecommunications Room

714
Q

TSB

A

Telecommunications System Bulletin

715
Q

TTY

A

Teletypewritter / Text Telephone

716
Q

TVL

A

TV Line

717
Q

TX

A

Transmitter

718
Q

TXOP

A

Transmit Opportunity

719
Q

U/FTP

A

Unshielded Twisted-Pair Cable with Foil Screened Twisted-Pair Conductors

720
Q

U-NII

A

Unlicensed national Information Infrastructure

721
Q

U/UTP

A

Unshielded Twisted-Pair Cable With Unshielded Twisted-Pair Conductors

722
Q

UBC

A

Unit Bonding Conductor

723
Q

UC

A

Unified Communications

724
Q

UDP

A

User Datagram Protocol

725
Q

UDS

A

Uniform Data System

726
Q

UHF

A

UltraHigh Frequency

727
Q

UMTS

A

Universal mobile Telecommunications Service

728
Q

UPC

A

Ultra Physical Contact

729
Q

UPC

A

Universal Product Code

730
Q

UPS

A

Uninterruptible power Supply

731
Q

USB

A

Universal Serial Bus

732
Q

USGBC

A

U.S. Green Building Council

733
Q

USOC

A

Universal Service Order Code

734
Q

UTC

A

Undercarpet Telecommunications Cable

735
Q

UTP

A

Unshielded Twisted Pair

736
Q

UV

A

Ultraviolet

737
Q

VAV

A

Variable Air Volume

738
Q

VCSEL

A

Vertical Cavity Surface Emitting Laser

739
Q

VDL

A

Vertical Down Lead

740
Q

VE

A

Value Engineering

741
Q

VDSL

A

Very high Bit-Rate Digital Subscriber Line

742
Q

VF

A

Voice Frequency

743
Q

VFL

A

Visual Fault Locator

744
Q

VGA

A

Video Graphics Array

745
Q

VHF

A

Very high Frequency

746
Q

VLA

A

Vented Lead-Acid

747
Q

VLAN

A

Virtual LAN

748
Q

VLF

A

Very Low Frequency

749
Q

VoIP

A

Voice Over Internet Protocol

750
Q

VOM

A

Volt-Ohm-Milliammeter

751
Q

VPN

A

Virtual Private Network

752
Q

VRLA

A

Valve-Regulated Lead-Acid

753
Q

VSS

A

Video Surveillance System

754
Q

VSWR

A

Voltage Standing Wave Radio

755
Q

WA

A

Work Area

756
Q

WAN

A

Wide Area Network

757
Q

WAP

A

Wireless Access Point

758
Q

WATS

A

Wide Area Telephone Service

759
Q

WBS

A

Work Breakdown Structure

760
Q

WCDMA

A

Wideband Code Division Multiplexing / Multiplexer

761
Q

WEP

A

Wired Equivalent Privacy

762
Q

WG

A

Working Group

763
Q

Wi-Fi

A

Wireless Fidelity

764
Q

WLAN

A

Wireless LAN

765
Q

WMTS

A

Wireless Medical Telemetry Service

766
Q

WPAn

A

Wireless Personal Area Network

767
Q

WW

A

WireWay

768
Q

xDSL

A

x Digital Subscriber Line

769
Q

XGA

A

Extended Graphics Array

770
Q

XLPE

A

Cross-Linked Polyethylene

771
Q

XML

A

Extensible Markup language

772
Q

XPD

A

Cross-Polarization Discrimination

773
Q

ZD

A

Zone Distributor

774
Q

ZDA

A

Zone Distribution Area

775
Q

°C

A

Degree Celsius

776
Q

°F

A

Degree Fahrenheit

777
Q

A

A

Ampere

778
Q

AH

A

Amp Hour

779
Q

amp

A

Ampere

780
Q

b

A

Bit

781
Q

b/s

A

Bit Per Second

782
Q

BTU

A

British Thermal Unit

783
Q

cfm

A

Cubit Foot per Minut

784
Q

cm

A

Centimeter

785
Q

dB

A

Decibel

786
Q

dB/km

A

Decibel per Kilometer

787
Q

dBA

A

Decibel-A-Weighting

788
Q

dBm

A

Decibel Milliwatt

789
Q

dBmV

A

Decibel Millivolt

790
Q

dBu

A

Decibel Unloaded

791
Q

dBV

A

Decibel Volt

792
Q

dBW

A

Decibel Watt

793
Q

EHz

A

Exahertz

794
Q

eV

A

Electron Volt

795
Q

fe

A

Foot-Candle

796
Q

fps

A

Frames Per Second

797
Q

ft

A

Foot

798
Q

ft²

A

Square Foot

799
Q

ft³

A

Cubed Foot

800
Q

Gb

A

Gigabit

801
Q

Gb/s

A

Gigabit per second

802
Q

GeV

A

Giga-Electron Volt

803
Q

GHz

A

Gigahertz

804
Q

H

A
  • Henry

- Hour

805
Q

HP

A

Horsepower

806
Q

Hz

A

Hertz

807
Q

in

A

Inch

808
Q

in WC

A

Inch Water Column

809
Q

in²

A

Inches Squared

810
Q

K

A

Kelvin

811
Q

kB

A

Kilobit

812
Q

kb/s

A

Kilobit Per Second

813
Q

kcmil

A

One Thousand Circular Mils

814
Q

KeV

A

Kilo-Electron-Volt

815
Q

Kg

A

Kilogram

816
Q

kHz

A

Kilohertz

817
Q

km

A

Kilometer

818
Q

km/s

A

Kilometer Per Second

819
Q

kN

A

Kilonewton

820
Q

kpa

A

Kilopascal

821
Q

kV

A

Kilovolt

822
Q

kVA

A

Kilovolt-Ampere

823
Q

kW

A

Kilowatt

824
Q

kWh

A

Kilowatt Hour

825
Q

lb

A

Pound

826
Q

lbf

A

Pound Fource

827
Q

m

A

Meter

828
Q

A

Square Meter

829
Q

mA

A

Milliampere

830
Q

Mb

A

Megabit

831
Q

Mb/s

A

Megabit Per Second

832
Q

MCM

A

One Thousand Circular Mil

833
Q

MeV

A

Mega-Electron Volt

834
Q

MHz

A

Megahertz

835
Q

MHz·km

A

Megahertz·Kilometer

836
Q

mi

A

Mile

837
Q

mi/s

A

Mile Per Second

838
Q

Mil

A

Circular Mil

839
Q

Mm

A

Megameter

840
Q

mm

A

Millimeter

841
Q

mm²

A

Squared Millimeter

842
Q

ms

A

Millisecond

843
Q

mV

A

Millivolt

844
Q

mW

A

Milliwatt

845
Q

N

A

Newton

846
Q

nm

A

Nanometer

847
Q

ns

A

nanosecond

848
Q

Pa

A

Pascal

849
Q

pF

A

Picofarad

850
Q

pF/m

A

Picofarad Per Meter

851
Q

PHz

A

Petahertz

852
Q

ps

A

Picoseconds

853
Q

psi

A

Pounds per Square Inch

854
Q

RU

A

Rack Unit

855
Q

s

A

Seconds

856
Q

Tb/s

A

Terabit per Second

857
Q

THz

A

Terahertz

858
Q

V

A

Volt

859
Q

V/m

A

Volt per Meter

860
Q

VA

A

Volt-Ampere

861
Q

Vac

A

Colts Alternating Current

862
Q

Vdc

A

Volt Direct Current

863
Q

Vpp

A

Volts Peak-to-Peak

864
Q

Vrms

A

Volt Root-Mean-Square

865
Q

W

A

Watt

866
Q

YHz

A

Yottahertz

867
Q

ZHz

A

Zettahertz

868
Q

μm

A

Micron

869
Q

μs

A

Microsecond

870
Q

μV

A

Microvolt

871
Q

Symbol: A

A

Amplitude

872
Q

Symbol: C

A

Capacitance

873
Q

Symbol: c

A

Speed of Light

874
Q

Symbol: f

A

Frequency

875
Q

Symbol: G

A

Conductance

876
Q

Symbol: I

A

Current

877
Q

Symbol: L

A

Inductance

878
Q

Symbol: N

A

Refractivity

879
Q

Symbol: P

A
  • Atmospheric Pressure

- Power

880
Q

R

A

Resistance

881
Q

T

A

Temperature

882
Q

t

A

Time

883
Q

Z

A

Impedance

884
Q

ε

A

Permittivity

885
Q

λ

A

Wavelength

886
Q

π

A

Pie

887
Q

Φ

A

Phase