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? and Chris Hutchinson on several tracks. Jack Irons later rejoined the Red Hot Chili Peppers in 1987, but would then leave the next year due to Hillel Slovak’s death via a heroin overdose. Alain Johannes, Natasha Shneider, and Jack Irons later formed the band Eleven. Jack Irons would later leave Eleven midway through the recording of their third album to join Pearl Jam (with whom he recorded two albums) only to later rejoin Eleven in time for their fifth album. Eleven disbanded after the death of Natasha Schneider. Both Johannes and Irons are now a part of Spinnerette. What Is