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 the Truth Feels Like It was the venue for her first live performance with her band No Doubt opening for Ziggy Marley in 1990. "This Is What the Truth Feels Like" received generally favorable reviews from contemporary music critics. At Metacritic, which assigns a normalized rating out of 100 to reviews from mainstream publications, the album received an average score of 62, based on 16 reviews. Leah Greenblatt of "Entertainment Weekly" stated that Stefani's material "feels truer—and sounds stronger—than it has in years". Mikael Wood of the "Los Angeles Times" was very positive in his review, highlighting that "[h]er singing—and, more important, what her