Digital Loop Carrier Overview

As urban sprawl continues with new housing developments in suburban and rural areas, distances from homeowners to their COs can exceed RRD and CSA ranges. Building COs to accommodate these distant users is not a good economic option. Therefore, a new class of lower-cost facilities called Digital Loop Carrier (DLC) systems are implemented to multiplex traffic back to the central office.

The motivations for DLC systems are to reduce pressures on existing voice switches, reduce the number of expensive COs, and deploy switching equipment closed to the user. The following section overviews these motivators and the architecture of DLC.

Benefits and Business Rationale of DLC

A more distributed architecture arises ...

Get Residential Broadband, Second Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.