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What are the main technology differences between T1 and DSL service?

April 26, 2017differences dsl main service T1 Technology

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What are the main technology differences between T1 and DSL service?

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For the purpose of explanation, a full T1 line will be compared to a 1.5Mbps SDSL connection. • 1 Dedicated Pair vs. 2 Dedicated Pair: SDSL utilizes one insulated twisted pair for its services that it does not share with the telephone line. T1 services utilize 2 pairs of twisted pair. One pair is used for receiving data while the other is used to transmit the data. • Oversubscription: One of the primary differences between DSL and a T1 is in the level of oversubscription. The T1 products offer a customer a truly dedicated circuit that does not get multiplexed with other circuits on its path to a PoP and then onto the Internet. DSL technologies offer dedicated circuits to the central office of telephone switching equipment; however, at the C.O. DSL circuits enter the DSLAM (Digital Subscriber Line Access Multiplexer), which funnels (or multiplexes) several circuits onto a single circuit. This action is called oversubscription. • T1 can be delivered over fiber as well as copper (4-wire)