| Wide Area
Networking (WAN) & Telco Acronyms |
| ADM |
Add/Drop Multiplexer |
| ADSL |
Asymmetric Digital
Subscriber Line |
| AIN |
Advanced Intelligent
Network |
| API |
Application Programming
Interface |
| APS |
Automatic Protection
Switching |
| ASAP |
Automatic System
Alarming and Performance |
| ASIC |
Application Specific
Integrated Circuit |
| ATM |
Asynchronous Transfer
Mode |
| BB-DCS |
Broadband Digital
Cross-connect System |
| BER |
Bit-Error Rate |
| BGP |
Border Gateway Protocol |
| BLSR |
Bi-directional
Line-Switched Ring |
| BML |
Business Management
Layer |
| BSTS |
Broadband Series Test
System |
| CAGR |
Compound Annual Growth
Rate |
| CAP |
Competitive Access
Provider |
| CBR |
Constant Bit Rate |
| CDR |
Call Detail Record |
| CLAS |
Centrex Line Assignment
Service |
| CLEC |
Competitive Local
Exchange Carrier |
| CMIP |
Common Management
Information Protocol |
| CMISE |
Common Management
Information Service Element |
| CO |
Central Office |
| CORBA |
Common Object Request
Broker Architecture |
| CoS |
Class of Service |
| CPE |
Customer Premises
Equipment |
| CRC |
Cyclic Redundancy Check |
| CR-LDP |
Constraint-based Routing
Label Distribution Protocol |
| CRLSP |
Constraint-based Routed
Label-Switched Path |
| CRM |
Customer Relationship
Management |
| DCC |
Data Communications
Channel |
| DCF |
Dispersion-Compensating
Fiber |
| DCN |
Data Communications
Network |
| DCS |
Digital Cross-connect
System |
| DDS |
Digital Data System |
| DFB |
Distributed Feedback |
| DiffServ |
Differentiated Services |
| DLC |
Digital Loop Carrier |
| DLCI |
Data Link Circuit
Identifier |
| DMT |
Discrete Multi-Tone |
| DPT |
Distributed Packet
Technology |
| DS0 |
Digital Signal Level 0 |
| DS1 |
Digital Signal Level 1 |
| DSF |
Dispersion-Shifted Fiber |
| DSL |
Digital Subscriber Line |
| DSLAM |
Digital Subscriber Line
Access Multiplexer |
| DTAU |
Digital Test Access Unit |
| DTM |
Dynamic Synchronous
Transfer Mode |
| DVMRP |
Distance Vector
Multicast Routing Protocol |
| DWDM |
Dense Wavelength
Division Multiplexing |
| EBITDA |
Earnings Before
Interest, Taxes, Depreciation, and Amortization |
| EC |
European Commission |
| EDFA |
Erbium-Doped Fiber
Amplifier |
| EF&I |
Engineering, Furnishing,
and Installation |
| EM |
Element Manager |
| EML |
Element Management Layer |
| EMS |
Element Management
System |
| EPS |
Earnings Per Share |
| ESF |
Extended Super Frame |
| ETSI |
European
Telecommunications Standards Institute |
| EU |
European Union |
| FA |
Fairness Algorithm |
| FCC |
Federal Communications
Commission |
| FCS |
Frame Check Sum |
| FDDI |
Fiber Distributed Data
Interface |
| FDL |
Facility Data Link |
| FEC |
Forward Equivalence
Class |
| FEC |
Forward Error Correction |
| FFP |
Fast Facility Protection |
| FR |
Frame Relay |
| FSN |
Full-Service Node |
| FTTC |
Fiber To The Curb |
| FTTH |
Fiber To The Home |
| FWM |
Four Wave Mixing |
| GDMO |
Guidelines for the
Definition of Managed Objects |
| GUI |
Graphical User Interface |
| HDLC |
High-level Data Link
Control |
| HDSL |
High-bit-rate Digital
Subscriber Line |
| HDTV |
High Definition
Television |
| HFC |
Hybrid Fiber/Coax |
| IAP |
Integrated Access
Platform |
| ICP |
Integrated
Communications Provider |
| IETF |
Internet Engineering
Task Force |
| IGP |
Interior Gateway
Protocol |
| IKE |
Internet Key Exchange |
| ILEC |
Incumbent Local Exchange
Carrier |
| IMA |
Inverse Multiplexing for
ATM |
| INMS |
Integrated Network
Management System |
| IntServ |
Integrated Services |
| IOP |
Interoperability |
| IP |
Internet Protocol |
| IPCS |
IP-over-channelized
SONET |
| ISDN |
Integrated Services
Digital Network |
| ISO |
International Standards
Organization |
| ISP |
Internet Service
Provider |
| ISV |
Independent Software
Vendors |
| ITU |
International
Telecommunications Union |
| IXC |
Interexchange Carrier |
| LAN |
Local Area Network |
| LDAP |
Lightweight Directory
Access Protocol |
| LDC |
Long-Distance Carrier |
| LDP |
Label Distribution
Protocol |
| LEC |
Local Exchange Carrier |
| LIB |
Label Information Base |
| LMDS |
Local Multipoint
Distribution System |
| LNP |
Local Number Portability |
| LSR |
Label Switch Router |
| LTE |
Line Terminating
Equipment |
| M&A |
Mergers and Acquisitions |
| MAN |
Metropolitan Area
Network |
| MAPOS |
Multiple Access Protocol
over SONET |
| MDU |
Multidwelling Unit |
| MIB |
Management Information
Block |
| MJU |
Multipoint Junction Unit |
| MML |
Man Machine Language |
| MPLS |
Multiprotocol Label
Switching |
| MPOA |
Multiprotocol Over
Asynchronous Transfer Mode |
| MSO |
Multiple System Operator |
| MSOH |
Multiplexer Section
Overhead |
| MSP |
Multiplex Section
Protection |
| MS-SPRings |
Multiplex Section-Shared
Protection Rings |
| MTBF |
Mean Time Between
Failures |
| MTTR |
Mean Time to Repair |
| NB-DCS |
Narrowband Digital
Cross-connect System |
| NDSF |
Non-Dispersion-Shifted
Fiber |
| NE |
Network Element |
| NEBS |
Network Equipment
Building Standards |
| NFOEC |
National Fiber-optic
Engineers- Conference |
| NIC |
Network Interface Card |
| NLO |
New Licensed Operator |
| NM |
Network Management |
| NMA |
Network Maintenance and
Analysis |
| NMF |
Network Management Forum |
| NML |
Network Management Layer |
| NMS |
Network Management
System |
| NOC |
Network Operation Center |
| NPAC |
Number Portability
Administration Center |
| NRZ |
Non-Return to Zero |
| NTU |
Network Termination Unit |
| NZ-DSF |
Non-Zero
Dispersion-Shifted Fiber |
| OA |
Optical Amplifier |
| OADM |
Optical Add/Drop
Multiplexer |
| OAM&P |
Operations,
Administration, Maintenance, and Provisioning |
| OC |
Optical Carrier |
| OCH |
Optical Channel |
| OCS |
Optical Cross-connect
System |
| O/E |
Optical-to-Electrical |
| OECD |
Organization for
Economic Cooperation and Development |
| OEM |
Original Equipment
Manufacturer |
| OFC |
Optical Fiber Conference |
| OLO |
Other Licensed Operator |
| OMG |
Object Management Group |
| OMS |
Optical Multiplexer
Section |
| OMSP |
Optical Multiplexer
Shared Protection |
| OSC |
Optical Service Channel |
| OSI |
Open System Interface |
| OSMINE |
Operations Systems
Integration and Modification of Network Elements |
| OSP |
Outside Plant |
| OSPF |
Open Shortest Path
First |
| OSS |
Operations Support
System |
| OVTG |
Optical Virtual
Tributary Group |
| OXC |
Optical
Cross-Connect |
| PBX |
Private Branch
Exchange |
| PCS |
Personal
Communications Service |
| PDH |
Plesiochronous
Digital Hierarchy |
| PDU |
Protocol Data Unit |
| PHY |
Physical Layer (of
the OSI model) |
| PIC |
Presubscribed
Interexchange Carrier |
| PIM |
Protocol Independent
Multicasting |
| PKI |
Public Key
Infrastructure |
| PM |
Performance
Management |
| PMD |
Polarization-Mode
Dispersion |
| PNNI |
Private
Network-to-Network Interface |
| POP |
Point of Presence |
| POS |
Packet
Over SONET |
| POTS |
Plain Old Telephone
Service |
| PPP |
Point-to-Point
Protocol |
| PRI |
Primary Rate
Interface |
| PSTN |
Public Switched
Telephone Network |
| PTT |
Post, Telephone, and
Telegraph |
| PVC |
Permanent Virtual
Circuit |
| QoS |
Quality of Service |
| RBOC |
Regional Bell
Operating Company |
| RFI |
Request for
Information |
| RFP |
Request for Proposal |
| RFQ |
Request for
Quotation |
| RHK |
Ryan Hankin Kent,
Inc |
| RSVP |
Resource Reservation
Protocol |
| RZ |
Return to Zero |
| SBS |
Stimulated Brillouin
Scattering |
| SCP |
Service Control
Point |
| SDCC |
SONET
Data Communication Channel |
| SDH |
Synchronous Digital
Hierarchy |
| SDL |
Simple Data Link |
| SDM |
Space Division
Multiplexing |
| SDSL |
Symmetric Digital
Subscriber Line |
| SIF |
SONET
Interoperability Forum |
| SIR |
SONET-IP
Remote |
| SLA |
Service Level
Agreement |
| SMDS |
Switched
Multi-megabit Data Services |
| SMF |
Single-Mode Fiber |
| SML |
Service Management
Layer |
| SNA |
Systems Network
Architecture |
| SNCP |
Sub-Network
Connection Protection |
| SNMP |
Simple Network
Management Protocol |
| SNR |
Signal-to-Noise
Ratio |
| SOHO |
Small Office/Home
Office |
| SONET |
Synchronous Optical
Network |
| SPE |
Synchronous Payload
Envelope |
| SPM |
Self Phase
Modulation |
| SRS |
Stimulated Raman
Scattering |
| STM |
Synchronous Transfer
Mode |
| STS |
Synchronous Transfer
Signal |
| SVC |
Switched Virtual
Circuit |
| TARP |
Target Identifiers
Address Resolution Protocol |
| TBOS |
Telemetry
Byte-Oriented Serial |
| TDD |
Time Division
Duplexing |
| TDM |
Time Division
Multiplexing |
| TELRIC |
Total Element Long
Run Incremental Cost |
| TL |
Transaction Language |
| TMN |
Telephony Management
Network |
| TOH |
Transport Overhead |
| TSI |
Time Slot
Interchange |
| TTL |
Time to Live |
| UBR |
Unspecified Bit Rate |
| UNE |
Unbundled Network
Element |
| UNI |
User-to-Network
Interface |
| UPSR |
Unidirectional
Path-Switched Ring |
| UR |
Unidirectional Ring |
| VBR |
Variable Bit Rate |
| VC |
Virtual Channel |
| VCI |
Virtual Connection
Identifier |
| VCX |
Virtual Channel
Cross-connect |
| VoFR |
Voice over
Frame Relay |
| VoIP |
Voice over
Internet Protocol |
| VP |
Virtual Path |
| VPI |
Virtual Path
Identifier |
| VPN |
Virtual Private
Network |
| VPX |
Virtual Path Switch |
| VT |
Virtual Tributary |
| WADM |
Wavelength Add/Drop
Multiplexer |
| WAN |
Wide Area Network |
| WB-DCS |
Wideband Digital
Cross-connect System |
| WDM |
Wavelength Division
Multiplexing |
| WSP |
Wireless Service
Providers |
| XML |
Extensible Markup
Language |
| Z-DSF |
Zero-Dispersion-Shifted
Fiber |
