ADSL (Asymmetric Digital Subscriber Line).
AMI (Alternate Mark Inversion).
ANSI (American National Standards Institute).
ATM (Asynchronous Transfer Mode).
CAP (Capability).
BRI (Basic Rate Interface).
CSU (Channel Service Unit).
DLC (Digital Loop Carrier).
D/S (DownStream).
DSL (Digital Subscriber Line).
DSLAM (Digital Subscriber Line Access Multiplexer).
ETSI (European Telecommunication Standards Institute).
FFTC (Fibre to the Cabinet).
FDD ( Frequency Division of Duplex connection).
FDM (Frequency Division Multiplexing).
FSAN (Full Service Access Networks).
HDSL (High bit rate Digital Subscriber Line).
IDSL (IDSN Digital Subscriber Line).
IOL (Iter Operability Lab).
IP (Internet Protocol).
ISDN (Integrated Services Digital Network).
LT (Linear Termination).
MPEG (Motion Picture Expert Group).
NT (Network Termination).
OPTIS (Overlapped PAM Transmission with Interlocking Spectra).
PAM (Pulse Amplitude Modulation).
PCM (Pulse Code Modulation).
PSD (Power Signal Density).
RADSL(Rate Adaptive Digital Subscriber Line).
SDSL (Symmetric Digital Subscriber Line).
SHDSL (Single-pair High bit rate Digital Subscriber Line).
TC-PAM (Trellis coded PAM).
UNI (User Network Interface).
U/S (UpStream).
АТС - автоматическая телефонная станция.
ИКМ - импульсно-кодовая модуляция.
КТВ - кабельное телевидение.
НТЦ - научно-технический центр.
ЭМВОС - эталонная модель взаимодействия открытых систем.