PDF of this tutorialADSL
Asymmetric Digital Subscriber Line
ALTS
Association of Local Telecommunications Services
ANSI
American National Standards Institute
AOL
America Online
ATM
Asynchronous Transfer Mode
ATU–C
ADSL Transceiver Unit–Central Office
ATU–R
ADSL Transceiver Unit–Remote
CLEC
Competitive Local-Exchange Carrier
CO
Central Office
CONUS
Continental U.S.
CPE
Customer Premises Equipment
DBS
Direct Broadcast Satellite
DEMS
Digital Electronic Messaging Service
DISH
Satellite Network Provided by Echostar Communications
DLC
Digital Loop Carrier
DMT
Discrete Multitone Technology
DOCSIS
Data over Cable Service Interface Specification
DSL
Digital Subscriber Line
DSLAM
DSL Access Multiplexer
DSP
Digital Signal Processor
DSS
Digital Satellite Service, a satellite network provided by DirecTV
DTH
Direct-to-Home
DTV
Digital TV
DVD
Digital Video Disk
FCC
Federal Communications Commission
FDM
Frequency Division Multiplexing
FSS
Fixed Satellite System
FTTC
Fiber-to-the-Curb
GDP
Gross Domestic Product
HDSL
High–Data Rate Digital Subscriber Line
HTML
Hypertext Markup Language
IDC
International Data Corporation
IDSL
ISDN Digital Subscriber Line
IEC
International Engineering Consortium
IEEE
International Electrical Engineering
ILEC
Incumbent Local-Exchange Carrier
IP
Internet Protocol
ISDN
Integrated Services Digital Network
ISP
Internet Service Provider
IT
Information Technology
ITU
International Telecommunication Union
IXC
Interexchange Carrier
Kbps
Kilobits per second
KHz
Kilohertz
LAN
Local-Area Network
LATA
Local Access Transport Area
LEC
Local-Exchange Carrier
LMDS
Local Multipoint Distribution Systems
Mbps
Megabits per second
MCNS
Multimedia Cable Network System
MDS
Multipoint Distribution Service
MDU
Multiple-Dwelling Unit
MMDS
Multichannel Multipoint Distribution Systems
MPEG
Moving Picture Experts Group
MTU
Multiple-Tenant Unit
NGDLC
Next-Generation Digital Loop Carrier
NIC
Network Interface Card
NID
Network Interface Device
NPRM
Notice of Proposed Rulemaking
OEM
Original Equipment Manufacturer
OSS
Operations Support System
PAM
Pulse-Amplitude Modulation
PBS
Public Broadcasting Service
PBX
Private Branch Exchange
PC
Personal Computer
POP
Point of Presence
POTS
Plain Old Telephone Service
PPP
Point-to-Point Protocol
PSC/PUC
Public Service/Utility Commission
PSTN
Public Switched Telephone Network
PVC
Permanent Virtual Circuit
RADSL
Rate Adaptive Digital Subscriber Line
RBOC
Regional Bell Operating Company
RF
Radio Frequency
RT
Remote Terminal
SDSL
Symmetric or Single-Pair Digital Subscriber Line
SOHO
Small Office/Home Office
TCP
Transport Control Protocol
UNE
Unbundled Network Element
USB
Universal Serial Bus
VDSL
Very-High–Data Rate Digital Subscriber Line
VPN
Virtual Private Network
VSAT
Very–Small Aperture Satellites
WAN
Wide-Area Network
xDSL
Any one of the family of DSL standards
