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Digital Subscriber Line Access Multiplexer (DSLAM)

Definition - What does Digital Subscriber Line Access Multiplexer (DSLAM) mean?

A digital subscriber line access multiplexer (DSLAM) is a networking device that connects multiple DSL subscribers to one Internet backbone. DSLAM is used by Internet service providers (ISP) or telecommunication providers to share high-caliber Internet bandwidth between DSL subscribers through multiplexing techniques.

Techopedia explains Digital Subscriber Line Access Multiplexer (DSLAM)

Designed to manage the incoming and outgoing Internet connectivity of DSL subscribers, DSLAM is installed at an ISP or central telco office. It is connected to the primary Internet backbone/router via a high-speed network connection, such as a frame relay, asynchronous transfer mode (ATM) or IP network. When a typical Internet request is sent by a subscriber’s modem, it reaches the DSLAM device. DSLAM aggregates many different user requests that are passed to the primary Internet backbone/router, which eventually provides dual data transfer or the Internet itself. Further, DSLAM broadcasts and separates the incoming requests of individual users to their unique DSL modems.

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