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
"What Is This Heart?" "What Is This Heart?" "What Is This Heart?" is the third studio album by How to Dress Well released on June 23, 2014 on Weird World, an imprint of Domino. It is his highest-charting album peaking at number 145 on The Billboard 200. The songs "A Power" and "What You Wanted" were co-written and co-produced by CFCF. Krell described the album's title in a message on Twitter: ""What Is This Heart?"" received mostly positive reviews from contemporary music critics. At Metacritic, which assigns a normalized rating out of 100 to reviews from mainstream critics, the album received an average score