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Terminology


Terminology
A B C D E F G H I L M N O P Q R S T U V W X


2G Second Generation
3G Third Generation
3G MSC/ 3G X Third Generation Mobile Switching Center
3GPP Third Generation Partnership Project
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A
ABU Antenna Branching Unit
ACI Adjacent Channel Interference
AD Add/Drop
ADM Add Drop Multiplexer
ADSL Asymmetric Digital Subscriber Line
ADSS All dielectric Self Supporting Cable
AEM Alarm Unit
AFC Automatic Frequency Control
AGC Automatic Gain Control
AIS Alarm Indication Signal
AN Access Network
ANT Antenna
ANSI American National Standard Institute
APON ATM PON
ASI Asynchronous Serial Interface (according to CENELEC EN 50083-9)
ASP Application Service Provider
ATM Asynchronous Transfer Mode
AU Administrative Unit
AUX Auxiliary
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B
BAS Broadband Access Server
BB Base Band
BCP Base Communications Processor / Binary Communication Protocol / Bridge Control Protocol / Byte Controlled Protocols
BER Bit Error Ratio
BIP Bit-Interleaved Parity
bps bit per second
BPSK Binary Phase Shift Keying
BRAN Broadband Radio Access Network
BSC Base Station Controler
BSHR Bi-directional Self Healing Ring
BSS Base Station System
BTS Base Transceiver Station
BW Bandwidth
BWA Broadband Wireless Access
BWFA Broadband Fixed Wireless Access
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C
C/N Carrier to Noise Ratio
CAS Channel Associated Signalling
CATV Cable Television
CCI Co-Channel Interference
CDM Code Division Multiplexing
CDMA Code Division Multiple Access
CEPT European Conference of Postal and Telecommunication Administration
CLI Command Line Interface
CM Configuration Management
CM Cable Modem
CMTS Cable Modem Termination System
CMX Cross Connect Multiplexer
CNR Carrier to Noise Ration
COFDM Coded Orthogonal Frequency-Division Multiplex
CON CConnection Oriented Network
CONN Connect
CORBA Common Object Reguest Broker Architecture (Object Management Group)
CORBA Common Object Reguest Broker Architecture
CPE Customer Premises Equipment
CR Carrier Recovery
CSMA/CD Carrier-sense Multiple Access with Collision Detection
CU Control Unit
CWDM Coarse Wave Division Multiplex
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D
DBA Dynamic Bandwidth Allocation
DC Direct Current
DCC Digital Cross Connect
DCN Data Communication Network
DECT Digital Enhanced Cordless Telecommunications
DFC Dual Fiber Channel
DLC Data Link Control
DMW Demultiplexer
DMX Demultiplexer/Demultiplexis
DOCSIS Data-over-Cable Service Interface Specification
DPSK Differential Binary Phase Shift Keying
DRL Digital Radio Link
DSA Data Service Adapter
DSC Digital Service Channels
DSL Digital Suscriber Line
DSLAM Digital Suscriber Line Access Multiplexer
DSSS Direct Sequence Spread Spectrum
DUP Data User Part
DVB Digital Video Broadcasting
DVB-C Digital Video Broadcasting - Cable
DVB-S Digital Video Broadcasting - Satellite
DVB-T Digital Video Broadcasting - Terrestrial
DWDM Dense Wavelenght Division Multiplexing
DXC DDigital Cross Connect
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E
ECC Electronic Communication Committee
EDGE Enhanced Data for GSM Evolution
EML Element Management Layer
EMS Element Management System
EOW Engineering Order Wire Unit
EPON Ethernet PON
ERC European Radio Communications Committee
ERM Ethernet Radio Modul
ES Errored Second
ESCON Enterprise System Connection (IBM)
ETS European Telecommunication Standard
ETSI European Telecommunication Standards Institute
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F
FC Fiber Channel
FCAPS Fault, Configuration, Accounting, Performance and Security Management
FD Frequency Diversity
FDDI Fiber Distributed Data Interface
FDM Frequency Division Multiplexing
FDMA Frequency Division Multiple Access
FEC Forward Error Correction
FICON Fiber Connectivity
FIFO First In First Out
FM Fault Management
FMC Fixed-Mobile Convergence
FMX Flexible Multiplexer
FS Fixed Service
FSK Frequency Shift Keying
FTP File Transfer Protocol
FTTb Fiber to the Building
FTTc Fiber to the Curb
FTTh Fiber to the Home
FTTx Fibre to the X
FWA Fixed Wireless Access
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G
GbE Gigabit Ethernet
GFP Global Functional Plane
GFSK Gaussion Frequency Shift Keying
GMPLS Generic MPLS
GPRS General Radio Packet Service
GSM Global System for Mobile communication
GW Gateway
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H
HCAN High Capacity Aggregate Node
HDB-3 High Density Bipolar 3-level Code
HDSL High Bit Rate Digital Subscriber Line
HDTV High Definition Television
HLR Home Location Register
HSB Hot Stand-By
HSCSD High Speed Circuit Switched Data
HW Hardware
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I
ICN Internal Communication Network
IF Intermediate Frequency
IFBU IF Branching Unit
IFP IF Part
IGF Interior Gateway Protocol
IOD Input - Outpu Device
ION Intelligent Optical Network
ISDN Integrated Service Digital Network
ISP Internet Service Provider
ITEMOS Iskra Transmission Equipment Maintenance and Operating System
ITU International Telecommunication Union
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L
LAN Local Area Network
LAPF Link Access Procedure for Frame-Mode Bearer Services
LAPS LAN Adapter and Protocol Support
LAPS Link Access Procedure for SDH
LCT Local Craft Terminal
LL Local Loop
LMP Link Management Protocol
LO Local Oscillator
LOS Line-of-Sight
LS Local Supervisory
LS Location Server
LSP Local Service Provider
LTE Line Terminal Equipment
LTU Line Termination Unit
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M
MAN Metropolitan Area Network
MAP Mobile Application Part
MBS Mobile Broadband System
MCAN Medium Capacity Aggregation Node
MDU Mux/Demux Unit
MM Multi Mode
MMDS Multichannel Multipoint Distribution
MMF Multi Mode Fiber
MPLS Multi - Protocol Label Switching
MPTS Multi Program Transport Stream
MQAM M-level Quadrature Amplitude Modulation
MR Multi Rate
MS Multiplex Section
MS Mobile Station
MSC Mobile Switching Center
MSK Minimum Shift Keying
MSP Multiple Service Platform
MSPP Multi Service Provisioning Platforms
MT Mobile Terrminal
MTBF Mean Time Between Failures
MTTR Mean Time To Repear
MUX Multiplexer
MWB Microwave Block
MWP Microwave Part
MX Multiplexer
MXM Multiplex Module
MXP MuxPonder
MXU Multiplex Unit
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N
NAD Network Access Device
NAP Network Access Point
NE Network Element
NGDLC Next Generation Digital Loop Carrier
NMS Network Management System
NNI Network to Network Interface
NRZ Non Return to Zero
NT Network Termination
NTU Network Termination Unit
NU Network Unit
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O
OA Optical Amplifier
OADM Optical Add Drop Multiplexer
OAM Operation and Maintenance
OBQ Offered Bit Quantity
OC Optical Carrier
OCU Optical Coupler Unit
ODF Optical Distribution Frame
ODU Optical Data Unit
OFDM Orthogonal Frequency Division Multiplexing
OH Overhead
OLI Optical Link Interface
OLS Optical Line System
OLT Optical Line Terminal
OLV VSEP Subrack
OMUX Optical Multiplexer
ONU Optical Network Unit
OPGW Optical Cable Ground Wire
OPPC Optical Phase Conductor
OPWR Optical Wrapping
ORU Optical Repeater Unit
OSC Optical Supervision Channel
OSS Operations Support System
OTN Optical Transport Network
OTS Optical Transmission Section
OTU Optical Transport Unit
OXC Optical Cross Connect
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P
PABX Private Automatic Branch Exchange
PAL Phase Alternating Line
PAN Personal Area Network
PBX Private Branch Exchange
PCU Packet Control Unit
PDH Plesiochronous Digital Hierarchy
PLL Phase Locked Loop
PM Performance Monitoring
PMR Professional Mobile Radio
PON Passive Optical Network
PoP Point of Presence
POTS Plain Old Telephone Service
PPC Program Production Center
PRBS Pseudo-Random Binary Sequence
PSDN Packet Switched Data Service
PSK Phase Shift Keying
PSTN Public Switched Telephone Network
PTM Point-to-Multipoint
PTP Point-to-Point
PXC Photonic Cross-connect
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Q
QAM Quadrature Amplitude Modulation
QEF Quasi Error Free
QoS Quality of Service
QPSK Quadrature Phase Shift Keying
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R
R Regenerator
RAN Radio Access Network
RBER Residual Bit Error Ratio
RDS Radio Data System
RN Remote Node
RNC Radio Network Controler
ROTS Railway Telephone Switching System
RS Regenerator Section
RSU Remote Switching Unit
Rx Receiver
RZ Return to Zero
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S
SAN Small Area Network
SAN Short Area Network
SAN Storage Area Network
SAN System Area Network
SAN Secure Area Network
SAN Secondary Access Node
SC Service Channel
SCADA Supervising, Control and Data Acquisition Equipment
SD Space Diversity
SDH Sinhronious Digital Hierarhy
SDI Serial Digital Interface (according to SMPTE 259M-C, CCIR 601)
SDR Software Defined Radio
SDR Spatial Diversity Receiver
SDR Storage Data Register
SDR System Dynamic Range
SDSL Symmetrical Digital Subscriber Line
SDTI Serial Digital Transport Protocol
SECAM Systeme Sequentiel Couleur a Memoire
SES Severely Errored Second
SFN Single Frequency Networks
SHDSL Single-Line High-bit-rate Digital Subscriber Line
SHDSL Symmetrical High Bit Rate Digital Subscriber Line (Ericcson)
SHDSL Symmetrical High-Density Digital Subscriber Line
SIM Subscriber Identification Module
SLA Service Level Agreement
SM Security Management
SM Single Mode
SMF Single Mode Fiber
SMPTE Society of Motion Picture and Television Engineering
SNMP Simple Network Management Protocol
SNR Signal to Noise Ratio
SOH Signal Overhead
SOH Section Overhead
SONET Synchronous Optical NETwork
SPI Synchronous Parallel Interface
SQL Structured Query Language (database query language)
SR Short Reach
SSL Secure Socket Layer
SSS Service Selection Server
STM Synchronous Transfer Mode
STM 1 Synchronous Transfer Mode, 1st Level
SUN Searching for Unregistered Names
SWM Switch Module
SWU Switch Unit
SYM System Module
SYU System Unit
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T
TC Telecommunication
TCP Transport Control Protocol
TCP Traffic Collection Point
T-DAB Terrestrial Digital Audio Broadcasting
TDM Time Division Multiplexing
TDMA Time Division Multiple Access
TETRA Terrestrial Trunked Radio
TM Terminal Multiplex
TM TeleManagement
TMN Telecommunication Management Network
TP Transponder
TPGbE Gigabit Ethernet Transponder
TPQMR Quad MultiRate Transponder Unit
TS Transport Stream
Tx

Transmitter

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U
UHF Ultra-High Frequency

UMTS

Universal Mobile Telecommunications System
UNI User to Network Interface
UTRAN UMTS Terrestrial Radio Access Network
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V
VAS Value Added Service
VCO Voltage Controlled Oscillator
VDSL Very High Bit Rate Digital Suscriber Line
VHF Very-High Frequency
VLAN Virtual Local Area Network
VOD Video on Demand
VoIP Voice over IP
VPC Virtual Path Connection
VPN Virtual Private Network
VSEP Vertical System Equipment Practice
VSR Very Short Reach
VU2 Video Unit (of SparkLight)
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W
WAN Wide Area Network
WARC Woed Administrative Radio Conference
WATM Wireless ATM
WCDMA Wide Code Division Multiple Access
WDM Wave Division Multiplexing
Wi-Fi Wireless Fidelity
WLAN Wireless LAN
WLL Wireless local Loop
 
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X
XC Cross Connect
xDSL x - Digital Subscriber Line
XML Extensible Markup Language
XSP X Service provider

 
 
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