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It is a great pleasure to announce the publication by McGraw-Hill of my new NEC 2011 guidebook. Reader feedback will be appreciated --



My second McGraw-Hill book for electricians, Troubleshooting and Repairing Commercial Electrical Equipment, now available from Amazon --






Now I've written a third McGraw-Hill book, out soon. The title is The Electricians's Trade Demystified. It is available for pre-order from Amazon. Click below --







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Electrician's Guide to electronic, telecom and computer acronyms --



AC - Armored Cable

AC - Alternating Current

ACIA - Asynchronous Communication Interface Adapter

ACK - Acknowledge

ACL - Advanced CMOS Logic

ACR - Attenuation to Crosstalk Ratio

A/D - Analog to Digital

ADC - Analog-to-Digital Converter

ADF - Automatic Document Feeder

ADSL Asymetric Digital Subscriber Line

AFCI - Arc Fault Circuit Interrupter

AF - Audio Frequency

AFC - Automatic Frequency Control

AGC - Automatic Gain Control

AGP - Accelerated Graphics Port

AI - Artificial Intelligence

AIFF - Audio Interchange File Format

AIX - Advanced Interactive Executive

ALC - Automatic Level Control

AL/Cu - Aluminum/Copper

ALU - Arithmetic Logic Unit

A/N - Alphanumeric

ANSI - American National Standards Institute

API - Application Program Interface

ARRL - American Radio Relay League

AS - Advanced Schottky

ASCII - American Standard Code for Information Interchange

ASP - Active Server Page

ASP - Application Program Interface

ASIC - Application-Specific Integrated Circuit

ASTM - American Society for Testing and Materials

ASK - Amplitude-Shift Keying

ATA - Application Service Attachment

ATM - Asynchronous Transfer Mode

ATC - Air Traffic Control

AV - Audio/Visual

AVC - Automatic Volume Control

AWG - American Wire Gauge

BASIC - Beginners' All-purpose Symbolic Instruction Code

BD - Bonding Diagram

BBD - Bucket Brigade Device

BCD - Binary Coded Decimal

BER - Bit Error Rate

BEV - Billion Electron Volts

BGA - Ball Grid Array < P>BiCMOS - Bipolar Complementary Metal Oxide Semiconductor

BICSI - Building Industry Consulting Service International

BIFET - BIpolar Field-Effect Transistor

BIOS - Basic Input-Output System

BMP - Bitmap

BNC - Baby N Connector

BPI - Bits Per Inch

BPS - Bits Per Second

BPSG - Boro-Phospo-Silicate Glass

BSE - Back-Scattered Electrons

BST - Ball Shear Test

BW - BandWidth

CerDIP - Ceramic Dual In-line Package

CAD - Computer Aided Design

CADA - Computer Assisted Design and Analysis

CADD - Computer Assisted Design and Development

CAE - Computer Assisted Engineering

CAM - Computer Assisted Manufacturing CAN - CANcel

CAS - Column-Address Strobe

CATV - Community Antenna Television

CB - Citizens' Band

CBI - Complementary Binary

CC - Constant Current

CCITT - International Telegraphy and Telephony Consultative Committee

CCTV - Closed Circuit TeleVision

CCD - Charge Coupled Device

CD - Compact Disc CD> - Compact Disk - Interactive

CD-R - Compact Disc Recordable

CD-ROM - Compact Disc Read-Only Memory

CD-RW - Compact Disc Re-Writable

CDMA - Code Division Multiple Access

CF - Center Frequency

CFM - Cubic Feet per Minute

CL - Current Loop

CP/M - Control Program for Microcomputers

CPI - Character Per Inch

CEC - Canadian Electrical Code

CECL - Cascode Emitter-Coubled Logic

COL -Chip On Lead

CEMF - Counter ElectroMotive Force

CerDIP - Ceramic Dual Inline Package

CGI - Common Gateway Interface

CISC - Complex Instruction Set Computing

CMOS - Complementary Metal Oxide Semiconductor

CMP - Communications Plenum Cable

CMR - Communications Riser Cable

CP - Consolidation Point

CPU - Central Prcessing Unit

CSAM - C-mode Scanning Acoustic Microscopy

CRC - Cyclic Redundancy Check

CRT - Cathode Ray Tube

CS - Control Strobe

CSA - Canadian Standards Association

CSP - Chip Scale Package

CSS - Cascading Style Sheet

CTC - Counter/Timer Circuit

CTS - Clear To Send

CTP - Composite Theoretical Performance

CV - Constant Voltage

CVT - Constant Voltage Transformer

D/A - Digital to Analog

DAC - Digital to Analog Converter

DAV - Data Available

dB - Decibel

DBA - DeciBels - Adjusted

DBK - DeciBels - referred to 1 Kilowatt

dBM - DeciBels - above or below 1 milliwatt

DCD - Data Carrier Detect

DES - Data Encription Standard

DFP - Dual Flat Pack

DIAC - Bilateral trigger diode

DIL - Dual In Line

DIP - Dual In-line Package

DJS - Diminishing JAN Source

DMA - Direct Memory Access

DMM - Digital MultiMeter

DP - Data Processing

DPDT - Double Pole Double Throw

DPST - Double Pole Single Throw

DS - Data Strobe (logic signal)

DSO - Digital Storage Oscilloscope

DSP - Digital Signal Processing

DTL - Diode Transistor Logic

DTMF - Dual Tone Multi-Frequency

DTR - Data Terminal Ready

DVM - Digital Volt-Meter

DBMS - Database Management System

DBS - Direct Broadcast Satellite

DBV - DeciBels - Voltage

DBX - DeciBels - above reference coupling

DC - Direct Current

DDR - Double Data Rate

DHCP - Dynamic Host Configuration Protocol

DIMM - Dual Inline Memory Module

DLL - Dynamic Link Library

DMA - Direct Memory Access

DNS - Domain Name System

DO - Diode Outline

DOS - Disc Operating System

DPI - Dots Per Inch

DRAM - Dynamic Random Access Memory

DRM Digital Rights Management

DS - Digital Signal

DAC - Digital-to-Analog Converter

DSLAM - Digital Subscriber Line Access Multiplexer

DSL - Digital Subscriber Line

DTD - Document Type Definition

DV - Digital Video

DVD - Digital Video Disc

DV/DT - Delta Voltage/Delta Time

DSP - Digital Signal Processing

EAPROM - Electricaly Alterable Read Only Memory

EEPROM - Electricaly Erasable Programmable Read Only Memory

EBCDIC - Extended Binary Coded Decimal Interchange Code

ECC - Error Checking and Correction

ECL - Emitter Coupled Logic

EEPROM - Electricaly Erasable Programmable Read Only Memory

EDI - Electronic Data Interchange

EF - Entrance Facility

EGA - Enhanced Graphics Adapter

EIA - Electronic Industries Alliance

EL - ElectroLuminescent

ELF - Extremly Low Frequency

EMF - ElectroMotive Force

EMI - ElectroMagnetic Interference

EMP - ElectroMagnetic Pulse

EMT - Electrical Metallic Tubing

ENIAC - Electronic Numerical Integrater and Computer

ENT - Electrical Nonmetallic Tubing

EOT - End Of Transmission

EPLD - Electricaly Programmable Logic Device

EPROM - Electricaly Programmable Read Only Memory

EPI - Epitaxial Layer

EPS - Encapsulated Post Script

EQ - Equalizer

ER - Equipment Room

ESCA - Electron Spectroscopy for Chemical Analysis

ESD - Electrostatic Sensitive Device

ESDS - ESD Sensitivity

ESR - Equivalent Series Resistance

EV - Electron Volt

ER - Equipment Room

FET - Field Effect Transistor

FEXT - Far End Crosstalk

FC - Flat Cable Assembly

FCC - Flat Conductor Cable

FCC - Federal Communications Commission

FDDI - Fiber Distributed Data Interface

FIB - Focused Ion Beam

FMC - Flexible Metal Conduit

FMT - Flexible Metallic Tubing

FPU - Floating Point Unit

FTIR - Fourier Transform Infrared

FTP - File Transfer Protocol

GA - Gate Array

GAL - Generic Array Logic

GCS - Gate Controller Switch

GFLOPS - Billions of FLOating Point operations per Second

GIF - Graphics Interchange Format

GIS - Geographic Information Systems

GND - Ground

GPIB - General Purpose Interface Bus

GPS - Global Positioning System

GUI - Graphical User Interface

HAL - Hardwired Array Logic

HC - High speed Cmos

HCT - High speed Cmos with Ttl thersholds

HD - High Density

HDC - Hard Disk Controller

HDMI - High Definition Multimedia Interface

HDPE - High Density Polyethylene Conduit

HDTV - High Definition TeleVision

HDX - Half Duplex

HER - High Efficiency Red

HET - Hetetodyne

HF - High Frequency

HFS - Hierarchical File System

HIC - Hybrid Integrated Circuit

HPIB - Hewlett Packard Interface Bus

HPIL - Hewlett Packard Interface Loop

HSA - High Speed Amplifier

HSC - High Speed Converter

HTL - High Threshold Logic

HTTP - Hypertext Tranfer Protocol

HVDC - High Voltage Direct Current

HVPS - High Voltage Power Supply

Hz - Hertz

IA - Instrumentation Amplifier

IC - Integrated Circuit

ICE - InCircuit Emulation

ICF - Internet Connection Firewall

ICMP - Internet Control Message Protocol

ICS - Internet Connection Sharing

IDC - Insulation Displacement Connection

IEC - International Electrotechnical Commission

IEEE - Institute of Electrical and Electronic Engineers

IF - Intermediate Frequency

IGBT - Insulated Gate Bipolar Transistor

IGFET - Insulated Gate Field Effect Transistor

IGP - Internet Graphics Processor

IGS - Integrated Gas Spacer Cable

ILD - Inter-Layer Dielectric

ILS - In-Line Sampling

IMAP - Internet Message Access Protocol

IMC - Intermediate Metal conduit

IMD - Inter-Metal Dielectric

I/O - Input-Output

IOB - Input/Output processor

IP - Interface Processor

IPX - Internetwork Packet Exchange

IR - Infrared

IRED - InfraRed Emitting Diode

ISDN - Integrated Services Digital Network

ISN - Information Systems Network

ISO - International Organization for Standardization

JFET - Junction Field Effect Transistor

JPEG - Joint Photographic Experts Group

JLCC - J-Leaded Chip Carrier

JRE - Java Runtime environment

JSP - Java Server Page

JUG - Joint Users Group

- Kilo

KA - KiloAmpere

KBPS - KiloBits Per Second

KEV - Kilo Electron Volts

KHz - Kilo Hertz

KVA - Kilo Volt Amperes

KWH - Kilo Watt Hours

LF - Low Frequency

LISP - List Processing

LEM - Light Emission Microscopy

LFCSP - Leadframe Chip Scale Package

LIMS - Laser Ionization Mass Spectroscopy

LO - Local Oscillator

LORAN - Long Range Navigation

LP - Low Pass

LPC - Linear Predictive Coding

LPM - Lines Per Minute

LPT - Line Printer

LSB - Least Significant Bit

LSD - Least Significant Digit

LSI - Large Scale Integration

LW - Long Wave

L - Inductance

LLFET - Logic Level Field Effect Transistor

LAN - Local Area Network

LASCR - Light Activated Silicon Controlled Rectifier

LASER - Light Amplification by Stimulated Emission of Radiation

LCD - Liquid Chrystal Display

LD - Line Driver

LDAP - Lightweight Directory Access Protocol

LED - Light Emitting Diode

LFMC - Liquidtight Flexible Metal Conduit

LFNC - Liquidtight Flexible Nonmetallic Conduit

LPI - Lines Per Inch

LQFP - Low Profile Quad Flat Pack

LUN - Logical Unit Number

MAC - Media Access Control

MC - Main Crossconnect

MC - Metal-Clad Cable

MAN - Metropolitan Area Network

MANET - Mobile Ad Hoc Network

MB - MegaBytes

MCM - Multichip Module

MCP - Multichip Package

MUX - Multiplexer

Mbps - Megabits per second

MCA - Micro Channel Architecture

MCU - MicroComputer Unit

MDAC - Multiplying Digital to Analog Converter

MECL - Motorola Emitter Coupled Logic

MFLOPS - Millions of FLoating Point operations per Second

MFM - Modified Frequency Modulation

MHz - Megahertz

MI - Mineral Insulated Cable

MIDI - Musical Instrument Digital Interface

MIPS - Million Instructions Per Second

MMU -- Memory Management Unit

MO - Master Oscillator

MOS - Metal Oxide Semiconductor

MOSFET - Metal Oxide Semiconductor Field Effect Transistor

MOV - Metal Oxide Varistor

MP3 - MPEG-1 Audio Layer 3

MPEG - Moving Picture Expert Group

MQFP - Metal Quad Flat Pack

MR - Magnetic Resonance

MS-DOS MicroSoft Disk Operating System

MSB - Most Significant Bit

MSD - Most Significant Digit

MSI- Medium Scale Intergration

MSOP - Micro Small Outline Package

MSP - Mixed Signal Processing

MTS - Multichannel Television Sound

MTU - Maximum Transmission Unit

MV - Medium Voltage Cable

NAT - Network Address Translation

NC - Normally Closed

NEC - National Electric Code

NEXT - Near End Crosstalk

NEMA - National Electrical Manufacturers' Association

NetBIOS - Network Basic Input-Output System

NF - NanoFarad

NFPA - National Fire Protection Association

NFS - Network File Server

NIC - Network Interface Card

NiCad - Nickel Cadmium

NM - Nonmetallic-sheathed Cable

NMOS - N-channel Metal Oxide Semiconductor

NMR - Nuclear Magnetic Resonance

NNTP - Network News Transfer Protocol

NO - Normally Open

NOC - Network Operations Center

NPN - Negative Positive Negative

NPS - National Pipe Straight Thread

NPT - National Pipe Tapered Thread

NTC - Negative Temperature Coefficient

NTFS - New Technology File System

NRZ - Non Return to Zero

NRZI - Non Return to Zero Invert

NT - Network Terminator

NUCC - Nonmetallic Underground Conduit with Conductors

NPN - Negative/Positive/Negative Bipolar Transistor

OC - Open Collector

OCR - Optical Character Recognition

ODBC - Open database Connectivity

OEM - Original Equipment Manufacturer

OFNP - Optical Fiber Nonconductive Plenum Cable

OLAP - Online Analytical Processing

OLE - Object Linking and Embedding

OOP - Object Oriented Programming

OSPF - Open Shortest Path First

OTDR - Optical Time Domain Reflectometer

OTP - One Time Programmable

OSHA - Occupational Safety and Health Administration

OSP - Outside Plant

OVP - Over Voltage Protection

OVP - Over Voltage Protection

P2P - Peer to Peer

PBX - Private Branch Exchange

PC - Personal Computer

PCB - Printed Circuit Board

PCI - Periferal Component Interconnect

PCI-X - Periferal Component Interconnect Extended

PDF - Portable Document Format

PDIP - Plastic Dual In-line Package

PDN - Public Data Network

PGA - Pin Grid Array

PIM - Personal Information Manager

PING - Packet Internet Groper

PLCC - Plastic Leaded Chip Carrier

PLL - Phase Locked Loop

PMU - Power Managemen Unit

PNG - Portable Network Graphic

PNP - Positive/Negative/Positive Bipolar Transistor

POP3 - Post Office Protocol

POT - Potentiometer

PPI - Pixels Per Inch

PQFP - Plastic Quad Flat Pack

PRAM - Parameter Random Access Memory

PSOP - Power Small Outline Package

PVC - Rigid Polyvinyl Chloride Conduit

QFP - Quad Flat Pack

QIC - Quarter Inch Cartridge

QIP - Quad Inline Package

QSM - Quad Surface Mount

RAID - Redundant Array of Independent Discs

RADAR - RAdio Detection And Ranging

RAM - Random Access Memory

RAS - Row Address Strobe

RDF - Resource Description Framework

RDRAM - Rambus Dynamic Random Access Memory

RFI - Radio Frequency Interference

RGA - Residual Gas Analysis

RGB - Red Green Blue

RISC - Reduced Instruction Set Computing

RJ - Registered Jack

RMC - Rigid Metal Conduit

RMI - Radio Magnetic Interference

RMS - Root Mean Square

ROM - Read Only Memory

RPC - Remote Procedure Call

RSS - RDF Site Summary

RTE - Runtime Environment

RTD - Resistance Temperature Detector

RTF - Rich Text format

RTI - Real Time Interrupt

RTL - Resistor Transistor Logic

RTRC - Reinforced Thermosetting Resin Conduit

RTOS - Real Time Operating System

RTS - Request To Send

RUP - Rational Unified Process

SATA - Serial Advanced Technology Attachment

SAW - Surface Acoustic Wave

SBC - Single Board Computer

SCA - SubCarrier Adapter

SCI - Serial Communication Interface

SCL - Serial CLock

SCR - Silicon Controller Rectifier

SCS - Silicon Controller Switch

SCSI - Small Computer System Interface

SD - Secure Digital

SEM - Scanning Electron Microscope

SDRAM - Symetric Digital Subscriber Line

SE - Service-Entrance Cable

SG - Signal Ground

SIMM - Single In-line Memory Module

SIO - Serial Input and Output

SIP - Single In-line Package

SIPO - Serial In Parallel Out

SKU - Stock Keeping Unit

SLC - Sigle Layer Ceramic

SLI - Scalable Link Interface

SM - Surface Mount

SMT - Surface Mount Technology

SMART - Self Managing and Reporting Technology

SMB - Server Message Block

SMD - Surface Mount Device

SMS - Short Message Service

SMTP - Simple Mail Transfer Protocol

SNR - signal to Noise Ratio

SO - Serial Output

SOA - Service Oriented Architecture

SOAP - Simple Object Access Protocol

SOC - System on a Chip

SO-DIMM - Small Outline Dual In-line Memory Module

SOI - Silicon on Insulator

SOIC - Small Outline Integrated Circuit

SOJ - Small Outline J-leaded

SQL - Structured Query Language

SOLV - SoLenoid Valve

SONAR - Sound Navigation and Ranging

SOP - Small Outline Package

SP - Signal Processor

SPDT - Single Pole Double Throw

SPI - Serial to Parallel Interface

SPICE - Simulation Program with Integrated Circuit Emphasis

SPST - Single Pole Single Throw

SQL - Structured Query Language (for databases)

SR - Shift Register

SRAM - Static Random Access Memory

SSB - Single SideBand

SSH - Secure Shell

SSI - Small Scale Integration

SSID - Service Set Identifier

SSL - Secure Sockets Layer

SSR - Solid State Relay

SSTV - Slow Scan TeleVision

SW - Short Wave

T/H - Track and Hold

TC - Temperature Coefficient

TC - Power and Control Tray Cable

TCP-IP - Transmission Control Protocol - Internet Protocol

TD - Tunnel Diode

TDD - Telecomunication Devices for the Deaf

TEM - Transverse Electromagnetic (wave)

TF - Transfer Function

TFD - Thin Film Detector

TFEL - Thin Film ElectroLuminescent

SOIC - Small Outline Integrated Circuit

TFP - Triple Flat Pack

TFT - Thin Film Transistor

TIFF - Tagged Image File Format

THD - Total Harmonic Distortion

THz - TeraHertz

TIA - Telecommunications Industry Association

TIG - Tungsten Inert Gas

TM - Transverse Magnetic

TR - Transient Response

TR - Telecommunications Room

TSOP - Thin Small Outline Package

TVSS - Transient Voltage Surge Suppressor

TQFP - Thin Quad Flat Pack

TRIAC - Biderectional Triode Thyristor

TWT - Traveling Wave Tube

TX - Transmitter

UART - Universal Asynchronous Receiver/Transmitter

UDDI - Universal Description Discovery and Integration

UDP - User Datagram Protocol

UF - Underground Feeder Cable

uF - micro Farad

UHF - Ultra High Frequency

UHV - Ultra High Vacuum

UJT - UniJunction Transistor

UL - Underwriters' Laboratories

ULSI - Ultra Large Scale Integration

UML - Unified Modeling Language

UNC - Universal Naming Convention

UPC - Universal Product Code

UPnP - Universal Plug and Play

UPS - Uninteruptible Power Supply

URI - Uniform Resource Identifier

URL - Uniform Resource Locator

USART - Universal Synchronous/Asynchronous Receiver/Transmitter

USB - Universal Serial Bus

USE - Underground Service-Entrance Cable

USOC - Uniform Service Order Code

UTC - Universal Time Code

UTP - Unshielded Twisted Pair

VA - Volt Ampere

VAC - Volts Alternating Current

VAR - Variable

YAG - Yttrium Aluminum Garnet

VCD - Variable Capacitance Diode

VCO - Voltage Controlled Oscillator

VCI - Virtual Channel Identifier

VDC - Volts Direct Current

VF - Vacuum Fluorecent

VFAT - Virtual File Allocation Table

VFC - Voltage to Frequency Converter

VFO - Variable Frequency Oscillator

VGA - Video Graphics Array

VHF - Very High Frequency

VLSI - Very Large Scale Integration

YIG - Yttrium Iron Garnet

VLB - VESA Local Bus

VLF - Very Low Frequency

VLSI - Very Large Scale Integration

VoIP - Voice over Internet Protocol

VOM - Volt Ohmmeter

VPI - Virtual Path Identifier

VPN - Virtual Private Network

VR - Voltage Regulator

VRAM - Video Random Access Memory

VRML - Virtual Reality Modeling Language

VS - Vertical Sync

VT - Virtual Terminal

VTM - Voltage Tunable Magnetron

VTVM - Vacuum Tube Volt Meter

VXO - Variable crystal Oscilator

WAIS - Wide Area Information Server

WAN - Wide Area Network

WEP - Wired Equivalent Privacy

Wi-Fi - Wireless Fidelity

WP - Word Processor

WPA - Wi-Fi Protected Access

WV - Working Voltage

WWW - World Wide Web

XHTML - Extensible Hypertext Markup Language

XSLT - Extensible Stylesheet Language Transformative

XTAL - crystal

ZD - Zero Defects

ZIF - Zero Insertion Force


Books for electricians --

Here is a selection of the most significant electricians' books available online today, at the best prices around. Clicking on any logo provides access to reviews and ratings by electricians. A good place to start is with the 2008 NEC Handbook, which contains the complete text of the current code plus extensive commentary, diagrams and illustrations. Other books of interest for the electrician are available as well.

Low Voltage, Telecom, Fire Alarm Books --


HOME | Best Web Host | Question of the Week | Archived Questions | More Archived NEC Questions | Still More Archived Questions | Still More Archived Questions-2 | Still More Archived Questions-3 | Articles | Electrical Deficiencies | More Electrical Deficiencies | Electricians Tools | Online computers | Cybercorner | Electrician's License | Electronics Tutorials | Electricians' worksaving ideas | Electronic Theorems | Satellite Dish | Digital Cameras and Equipment | HTML Color Chart | Electronic Acronyms | Electronic Definitions | Electrician's Soldering Tutorial | Photovoltaic Power | Wind Power | Fire Alarm Basics | More Fire Alarm Info | Working with MC and EMT | Electricians' Color Code | Wiring Commercial Garages | Managing Your Emergency Lights | Lighting Design | Industrial Wiring | Wiring Ethernet | Residential Wiring | Low Voltage Wiring | PLC Overview | Electrical Troubleshooting Techniques | Using Loop Impedance Meter | Ten Common Grounding Errors |NEC and Low-Voltage Wiring | Raceway Protection and NEC | Working with Metal Raceway | Inductance and Characteristic Impedance | Understanding Capacitance | History of the Ethernet | Twisting Data Conductors | NEC Article 800, Communications Circuits | NEC Article 810, Radio and Television Equipment | NEC Article 820, Community Antenna and Radio Distribution Equipment | NEC Article 830, Network-Powered Broadband | Troubleshooting Submersible Well Pumps | Wiring Healthcare Facilities | First Edition National Electrical Code 1897 | Books for Electricians | Links

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