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 Fresh Hell Is This? What Fresh Hell Is This? What Fresh Hell is This? is the fourth studio album by Art Bergmann, released in 1995 on Epic Records. The album gets its name from a quotation by American wit Dorothy Parker. The album was written primarily while Bergmann was in rehab, recovering from his prior battles with drug addiction. In its year end poll of its newspapers' music critics, Southam Newspapers named the album as one of the ten best albums of 1995, with "London Free Press" critic Ian Gillespie lauding Bergmann as "a Canadian rock genius, doomed to hover around the edges of