Automated Main Distribution Frame
- Automated Main Distribution Frame
Automated Main Distribution Frame (AMDF), (automated switching matrix, automated distribution frame, Loop Management System (LMS)), a technology to provide connectivity between subscriber (local loop, outside plant) - and office equipment (inside plant) lines in a telephone exchange (central office, CO) main distribution frame (MDF).
At the beginning of the 21st century the connections (n-subscriber lines and m-office equipment lines) are established or removed manually using a twisted pair of copper wires (jumper).
An automated main distribution frame provides, after an initial installation of all relevant subscriber- and office equipment lines, remote controlled and localy performed connectivity by switching via the switching matrix of an AMDF.
Advantages of automated main distribution frame include reduced switching time, reduced errors in execution and documentation, no truck-roll for each subscriber connection to be established, and reduction of operational expenditures (OPEX). These advantages are typically only off-setting the initial investment in the AMDF equipment in places with relatively high labour cost and an "active" telephony market where subscribers have a choice of multiple service providers leading to many MDF changes.
External links: IEC [http://www.iec.org/online/tutorials/man_copper/]
Wikimedia Foundation.
2010.
Look at other dictionaries:
Main distribution frame — In telephony, a main distribution frame (MDF or main frame) is a signal distribution frame for connecting equipment (inside plant) to cables and subscriber carrier equipment (outside plant). The MDF is a termination point within the local… … Wikipedia
Main distribution frame — Este artículo o sección sobre comunicaciones necesita ser wikificado con un formato acorde a las convenciones de estilo. Por favor, edítalo para que las cumpla. Mientras tanto, no elimines este aviso puesto el 20 de octubre de 2010. También… … Wikipedia Español
Distribution frame — Unshielded twisted pair (copper) and optical fiber distribution frame … Wikipedia
Automatische Schaltmatrix — Automatische Schaltmatrix, auch automatischer Schaltverteiler, Loop Management System (LMS), automated distribution frame oder automated main distribution frame, ist eine technische Lösung zur Schaltung von Kupferdoppeladern in der… … Deutsch Wikipedia
Loop Management System — Automatische Schaltmatrix, auch automatischer Schaltverteiler, Loop Management System (LMS), automated distribution frame oder automated main distribution frame, ist eine technische Lösung zur Schaltung von Kupferdoppeladern in der… … Deutsch Wikipedia
List of computing and IT abbreviations — This is a list of computing and IT acronyms and abbreviations. Contents: 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y … Wikipedia
Telephone exchange — A telephone operator manually connecting calls with cord pairs at a telephone switchboard. In the field of telecommunications, a telephone exchange or telephone switch is a system of electronic components that connects telephone calls. A central… … Wikipedia
TeleCAD-GIS — Infobox Software name = TeleCAD GIS caption = author = developer = INOVA released = February, 2002 latest release version = 2006 (4.3.3) latest release date = June, 2008 latest preview version = latest preview date = platform = Autodesk Map 3D… … Wikipedia
Warez — Not to be confused with Juárez. Demonstration in Sweden in support of file sharing, 2006 … Wikipedia
Packet switching — is a digital networking communications method that groups all transmitted data – regardless of content, type, or structure – into suitably sized blocks, called packets. Packet switching features delivery of variable bit rate data streams… … Wikipedia
