n. The blocky plug/transformer combinations used with modems, telephones, and other consumer electronics.
DED requires a wall wart (power supply) that supplies between 6-12volts of DC power with a minimum of 100 Ma capability in order to operate.
One final note on connections: Except for the NEC AudioTower SpeakerSystem and the Advent Powered Partners AV570 speakers, the speakers we tested come with modular power supplies — known derisively in the electronics business as wall warts.
Furthermore, rather than having local power at the attendant desk ("a wall wart," as Mr. Williams so cleverly put it), the Centracom console is powered by a UPS System in the backroom. The power is fed to the console via the skinny wire.