digital loop carrier

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digital loop carrier

[′dij·əd·əl ′lüp ‚kar·ē·ər]
A technology for providing 24 telephone circuits on pairs of wires, in which analog input signals are first sampled and digitized, and the binary digital signals from 24 users are then time-multiplexed into a single bit stream.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

digital loop carrier

In telephone communications, a technology that increases the number of channels in the local loop by converting analog signals to digital and multiplexing them back to the end office. Digital loop carriers (DLCs) have increased the capacity of the installed cable plant by enabling several hundred conversations to ride over two twisted wire pairs. A carrier serving area (CSA) is the geographic boundary served by a DLC. Digital loop carrier equipment is either above ground or in small weatherproof, underground rooms typically within a mile of the final drop to the customer.

The host terminal is the equipment at the end office, and the remote terminal is situated in the outside plant (from end office to customer). The closer the DLC is to the customer, the shorter the analog line and the greater the performance. Analog lines, which used to be three miles long, are now less than a mile in many cases. See central office and pair gain.

Carrier Serving Area
The digital loop carrier provides service to a number of households and offices, and the area that is served is called a Carrier Serving Area.

Carrier Serving Area
The digital loop carrier provides service to a number of households and offices, and the area that is served is called a Carrier Serving Area.
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References in periodicals archive ?
Digital loop carrier is a technology that uses digital techniques to customers via twisted-pair copper lines.
The integrated digital loop carrier is required when a digital loop carrier system is integrated into a local digital link.
The study found that digital loop carrier technology made use of digital techniques to bring a wide range of services to users via twisted-pair copper telephone lines.
Designed for use in digital loop carriers, multi-tenant units and DSL access multiplexers, the chipset supports 8Mb/s full-rate ADSL technology as well as 1.5Mb/s G.lite ADSL technology to eliminate the need for telephone companies to install splitter equipment or special wiring at the customer's premises.
The V-Switch is a breakthrough switching product that enables next generation digital loop carriers (NGDLCs) to operate independently of the Class 5 switch by providing dial tone and services directly to the access device.
The technique of routing service to rural residents through remote digital loop carriers (DLCs) allows many rural telcos to deliver DSL to thousands of customers.
In a typical DSL service deployment, DSL Access Multiplexers (DSLAMs) and/or Next Generation Digital Loop Carriers (NGDLCs) are installed in central offices, remote locations.
The new multi-port chipset offers an ideal solution for multi-port digital loop carriers, and for DSL Access Multiplexers (DSLAMs) used to deploy ADSL services in central office applications.
Digital loop carriers systems merged with radio to serve outlying areas.
The MT90502 device is designed to provide a high-bandwidth solution for combined voice and data services in multi-service switching platforms, 3G mobile system equipment, carrier-class gateways, next-generation digital loop carriers and ATM edge switches.

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