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
Suffer little children to come unto me Suffer little children to come unto me Suffer little children to come unto me is a painting attributed to the Dutch painter Rembrandt. The subject of the portrait is the teaching of Jesus about little children and it is estimated that Rembrandt painted it in Leiden in the 1620s. The painting was recently discovered by Dutch art dealer Jan Six. He is a direct descendant of Jan Six, a 17th-century burgher who sat for one of Rembrandt’s most important paintings, "Portrait of Jan Six". He asked an invester to buy it at Lempertz auction for €1,525,000. Six recently reattributed another