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Single-Line Digital Subscriber Line (SDSL)

Introduction

Single-line Digital Subscriber Line (SDSL) is a form of DSL service that provides equal bandwidth for both uploads and downloads. SDSL delivers 1.544 Mbps both downstream and upstream over a single copper twisted pair. The use of a single twisted pair limits the operating range of SDSL to 10,000 feet (3048.8 meters).

Also known as: Symmetric Digital Subscriber Line