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Tele-Communication (Telecom) Terms Glossary and Dictionary
Symmetric Digital Subscriber Line
Symmetric Digital Subscriber Line (SDSL), also known as Single-line Digital Subscriber Line, is one variaton of DSL technologies 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).
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