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Glossary: Optical Terms Index
ADM:
Add/Drop Multiplexer

ADSL:
Asymmetric Digital Subscriber Line

API:
Application Programming Interface

APS:
Automatic Protection Switching

ASE:
Amplified Spontaneous Emission

ATM:
Asynchronous Transfer Mode

AWG:
Arrayed Waveguide

BER:
Bit Error Ratio

CSA:
Component Spectrum Analyzer

dBm:
deciBel referenced to a milliwatt

DBR:
Distributed Bragg Reflector

DEMUX:
Demultiplexer
Related Items: MUX

DFB:
Distributed Feedback

DSF:
Dispersion-Shifted Fiber

DSL:
Digital Subscriber Line

DSLAM:
Digital Subscriber Line Access Multiplexer

DWDM:
Dense Wavelength Division Multiplexing

EAM:
Electro-Absorptive Modulator

EDFA:
Erbium-Doped Fiber Amplifier

EOM:
Electro-Optic Modulator

ER:
Extinction Ratio

FDDI:
Fiber Distributed Data Interface

FTTC:
Fiber-to-the-Curb

FTTH:
Fiber-to-the-Home

FWHM:
Full Width at Half Maximum

FWM:
Four Wave Mixing

GUI:
Graphical User Interface

IEC:
International Electrotechnical Commission

IPv4:
Internet Protocol version 4
Related Items: IPv6

IPv6:
Internet Protocol version 6
Related Items: IPv4

ISDN:
Integrated Services Digital Network

ISO:
International Standards Organization

ITU:
International Telecommunication Union

IXC:
Interexchange Carrier

LAN:
Local Area Network
Related Items: MAN WAN

LEC:
Local Exchange Carrier

MAN:
Metropolitan Area Network
Related Items: LAN WAN

MAPOS:
Multiple Access Protocol over SONET
Related Items: SONET

MPLS (1):
Multiprotocol Label Switching

MPLS (2):
Multiprotocol Lambda Switching

MPOA:
Multiprotocol Over Asynchronous Transfer Mode

MTBF:
Mean Time Between Failures

MTTR:
Mean Time to Repair

MUX:
Multiplexer
Related Items: DEMUX

NDSF (1):
Non-Zero Dispersion Shifted Fiber

NDSF (2):
Non-Dispersion-Shifted Fiber

NFOEC:
National Fiber-optic Engineers Conference

NIC:
Network Interface Card

NRZ:
Non-Return to Zero

NZ-DSF:
Non-Zero Dispersion-Shifted Fiber

O/E:
Optical-to-Electrical

OA:
Optical Amplifier

OADM:
Optical Add/Drop Multiplexer

OCS:
Optical Cross-connect System

OFC:
Optical Fiber Conference

OSC (1):
Optical Supervisory Channel

OSC (2):
Optical Service Channel

OSC (3):
Optical Source Controller

OSI (1):
Open System Interface

OSI (2):
Optical Systems Interconnect

OTDR:
Optical Time Domain Reflectometer

OXC:
Optical Cross-Connect

PAW:
Phased Array Waveguide

PBX:
Private Branch Exchange

PDBW:
Polarization Dependent Bandwidth
Related Items: PDCW PDW

PDCW:
Polarization Dependent Central Wavelength
Related Items: PDBW PDW

PDL:
Polarization Dependent Loss

PDW:
Polarization Dependent Wavelength
Related Items: PDBW PDCW

PMD:
Polarization Mode Dispersion

PNNI:
Private Network-to-Network Interface

POP:
Point of Presence

POS:
Packet Over SONET
Related Items: SONET

POTS:
Plain Old Telephone Service

PPP:
Point-to-Point Protocol

PRI:
Primary Rate Interface

PSTN:
Public Switched Telephone Network

QoS:
Quality of Service

RBOC:
Regional Bell Operating Company

RZ:
Return to Zero

SBS:
Stimulated Brillouin Scattering

SCP:
Service Controll Point

SDCC:
SONET Data Communication Channel
Related Items: SONET

SDH:
Synchronous Digital Hierarchy

SDL:
Simple Data Link

SDSL:
Symmetric Digital Subscriber Line

SMF:
Single Mode Fiber

SMSR:
Side Mode Supression Ratio

SNA:
Systems Network Architecture

SNR:
Signal-to-Noise Ratio

SONET:
Synchronous Optical Network
Related Items: MAPOS POS SDCC

SPM:
Self-Phase Modulation

SRS:
Stimulated Raman Scattering

SSE:
Source Spontaneous Emission
Related Items: STSE

STM:
Synchronous Transfer Mode

STS:
Synchronous Transfer Signal

STSE:
Signal to SSE ratio
Related Items: SSE

TCP:
Transmission Control Protocol
Related Items: UDP

TDM:
Time-Division Multiplexing

TIA:
Telecommunications Industry Association

UDP:
User Datagram Procol
Related Items: TCP

VoFR:
Voice over Frame Relay

VoIP:
Voice over Internet Procotol

VPN:
Virtual Private Network

WADM:
Wavelength Add/Drop Multiplexer

WAN:
Wide Area Network
Related Items: LAN MAN

WB-DCS:
Wideband Digital Cross-Connect System

WDM:
Wave Division Multiplexing

XPM:
Cross-Phase Modulation

Z-DSF:
Zero-Dispersion Shifted Fiber