A
ADSL... Asymmetric Digital Subscriber Line
AOEN... All-Optical Ethernet networks
ASI... Asynchronous Serial Interface
ASO... Arbitrary Slice Ordering
ATM... Asynchronous Transfer Mode
ATSC... Advanced Television Systems Committee
ATU... ADSL Transmission Unit
B
BPON... Broadband PON
BSS... Business Support System
C
CABAC... Context Adaptive Binary Arithmetic Coding
CAM... Conditional Access Modules
CAPEX... Capital Expenditures
CAS... Conditional-Access-System
CAT... Conditional Access Table
CATV... Cable TV
CAVLC... Context Adaptive Variable Length Coding
CBR... Constant Bit Rate
CCTV... Closed-Circuit Television
CD... Corporate Design [german]
CD-ROM... Compact Disc read-only memory
CI... Common Interface
CIF... Common Intermediate Format
CLI... Command Line Interface
CMTS... Cable Modem Termination System
CPE... Customer Premise Equipment
CPE... Customer Premises Equipment
CRC...Cyclic Redundancy Check
D
DCT... Discrete Cosine Transformation
DDNS... Dynamic Domain-Name-System
DHCP... Dynamic Host Configuration Protocol
DMT... Discrete Multi Tone Modulation
DN... Distribution Network
DOCSIS... Data Over Cable Service Interface Specification
DSL... Digital Subscriber Line
DSLAM... DSL Access Multiplexer
DVB... Digital Video Broadcasting
DVB-S... Digital Video Broadcasting - Satellite
E
EIT... Event Information Table
EPG... Electronic Program Guide
F
FDI... Feeder distribution
FDM... Frequency Division Multiplexing
FIR... Finite Impulse Response
Firefox, Mozilla Firefox
FMO... Flexible Macroblock Ordering
FTP... File Transfer Protocol
FSAN... Full-Service Access Network (Initiative)
FTTH... Fiber To The Home
G
H
H.264/MPEG-4 AVC
HDMI... High Definition Multimedia Interface
HDSL... High-data-rate DSL
HDTV... High Definition Television
HFC... Hybrid Fiber Coax (Synonym Edge-QUAM?)
I
IEEE... Institute of Electrical and Electronics Engineers
IR... Infrared (e.g.: IR remote control)
ISDN... Integrated Services Digital Network
ITU... International Telecommunications Union
J
K
Know-how [german]
L
LAN... Local Area Network
LCP... Local Convergence Point
LEX... Local exchange
LR-VDSL2... long reach VDSL2
M
MAN... Metropolitan Area Network
MDU/MTU... Multi-Dwellings Unit / Multi-Tenant Unit
MG... Multicast Group
MHP... Multimedia Home Platform
MIB... Management Information Base; MIBs specify the management data of a device subsystem, using a hierarchical namespace containing object identifiers in SNMP.
MP3... MPEG-1 Audio Layer 3
MPEG-2... A standard from the Moving Pictures Expert Group; has integrated audio-codec and synchronisation; corrensponds to international standard ISO/IEC 13818
MPTS... Multi Program Transport Stream
MTU... Maximum Tranmission Unit

N
NAP... Network Access Point
NIC... Network Interface Card
nid... node-ID
NID/ONU... Network Interface Device / Optical Networking Unit
NIT... Network Information Table
NTP... Network Time Protocol
O
OEM... Original Equipment Manufacturer
OLT... Optical Line Terminal
ONT... Optical Network Terminal
ONU... Optical Networking Unit
OPEX... Operating Expenditures
OSD... On Screen Display
OSS... Operation Support System
P
PAT... Program Association Table
PCR... Program Clock Reference
Pel... Picture Element
PES... Packetized Elementary Stream
PID... Program Identification
PID... Packet ID
PMT... Program Map Table
PON... Passive Optical Network
POTS... Plain Old Telephone Service
PPV... Pay-per-View
PSTN... Public Switched Telephone Network
PTP... Point-to-Point (Network)
PVR... Personal Video Recorder [german]
PVR... personal video recorder [english]
Q
QAM... Quadrature Amplitude Modulation
QP... Quantisation Parameter
R
RAM... Random Access Memory
ResReq... Resend Request
ring buffer (a.k.a. circular buffer)
RT... Remote Terminal
RTP... Real-Time Transport Protocol
S
SAD... Sum of Difference
SAP... Service Advertisement Protocol
SDSL... Symmetric Digital Subscriber Line
SDT... Service Description Table
SDTV... Standard-Definition Television
SI... Service Information
SI... Switching I-Frame
SNMP... Simple Network Management Protocol. SNMP is used by network management systems to monitor network-attached devices for conditions that warrant administrative attention.
SP... Switching P-Frame
SPTS... Single Program Transport Stream
STB... (Set-Top-Box) [german]
STB... (set-top box) [english]
STL... Standard Template Library
T
T1... Trunk 1 (1.544 Mbit/s)
T3... Trunk 3 (43.232 Mbit/s)
TCP/IP... The internets protocol stack, also referred as Internet protocol suite; Transmission Control Protocol / Internet Protocol
TDMA... Time Division Multiple Access
TDT... Time and Date Table
TFTP... Trivial File Transport Protocol
Timeshift, auch TimeShift oder Time-Shift [Deutsch]
timeshift [English]
Trick Play... Tasten für Timeshift, Pause, usw.
TS... Transport Stream
TSID... Transport Stream ID
U
UDP... User Datagram Protocol; UDP is connectionless and guarantees nor order or completeness of packets!
UTC... Universal Time Coordinated
UVLC... Universal Variable Length Encoding
V
VBR... Variable Bit Rate
VDSL... Very-high-bit-rate DSL
VLAN... Virtual Local Area Network (IEEE 802.1g)
VoD... Video on Demand [german]
VOD... Video on demand [english]
W
WAN... Wide Area Network
X
XML... Extensible Markup Language
Y
Z