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 Wondrous Love Is This What Wondrous Love Is This "What Wondrous Love Is This" (often just referred to as "Wondrous Love") is a Christian folk hymn, sometimes described as a "white spiritual", from the American South. Its text was first published in 1811, during the Second Great Awakening, and its melody derived from a popular English ballad. Today it is a widely known hymn included in hymnals of many Christian denominations. The hymn's lyrics were first published in Lynchburg, Virginia in the 1811 camp meeting songbook "A General Selection of the Newest and Most Admired Hymns and Spiritual Songs Now in Use". The lyrics