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 the Day...This Is the Hour...This Is This! "The Twilight Zone" and the Super Bowl XXII. On "Preaching to the Perverted," Clint Mansell sings "So we steal, so what? So far so good, we're Robin Hoods." "Wise Up! Sucker" contains a "sharp, mocking backing vocal" from Miles Hunt of The Wonder Stuff. One of the songs which "really taps into the heart of PWEI’s science-fiction obsession," "Inject Me" features a breakbeat and "murky" beginning, With its "shady" and "creepy" sustained narrative, it starts with what appears to be a "first-person reverie of some slacker junkie," with the song's introductory lyrics whispered by Mansell, whose voice becomes more paranoid