Add-drop multiplexer Add-drop multiplexer An add-drop multiplexer (ADM) is an important element of an optical fiber network. A multiplexer combines, or multiplexes, several lower-bandwidth streams of data into a single beam of light. An "add-drop" multiplexer also has the capability to "add" one or more lower-bandwidth signals to an existing high-bandwidth data stream, and at the same time can extract or "drop" other low-bandwidth signals, removing them from the stream and redirecting them to some other network path. This is used as a local "on-ramp" and "off-ramp" to the high-speed network. ADMs can be used both in long-haul core networks and in
This Is What It Feels Like the United Kingdom, peaking at number 6 on the UK Singles Chart. The song was written by Armin van Buuren, Benno de Goeij, Jenson Vaughan, Trevor Guthrie and John Ewbank. Van Buuren wrote the instrumental with de Goeij and Ewbank in 2012. Trevor Guthrie wrote the lyrics with Jenson Vaughan, and it was inspired by Guthrie's neighbor who was diagnosed with a brain tumor. "This Is What It Feels Like" was nominated for the 2014 Grammy Award for Best Dance Recording. A music video to accompany the release of "This is What It Feels Like" was first released onto YouTube