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Reference.org
Cable modem termination system
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<p>A cable modem termination system (CMTS, also called a CMTS Edge Router) is a piece of equipment, typically located in a cable company's <a href="/facts/Cable_television_headend/CMWD4RPp">headend</a> or hubsite, which is used to provide data services, such as <a href="/facts/Cable_Internet/fnVm7AK9">cable Internet</a> or <a href="/facts/Voice_over_IP/5QGBbXYg">Voice over IP</a>, to cable subscribers. </p><p>A CMTS provides similar functions to a <a href="/facts/DSLAM/bqgGRzNr">DSLAM</a> in a <a href="/facts/Digital_subscriber_line/3pY5osov">digital subscriber line</a> or an <a href="/facts/Optical_line_termination/JFP33edf">optical line termination</a> in a <a href="/facts/Passive_optical_network/1E3x5V96">passive optical network</a>. </p>