略語大辞典 [C] 17 MULDEM multiplexer-demultiplexer; a communication device which combines or separates lower level digital signals to (データ通信用の)多重化-復調装置.multiplexer-demultiplexer; a communication device which combines or separates lower level digital signals toa higher level digital signal; a part of a D-channel bank, where 24 DS0 (64Kb) signals are combined into a 1.544 Mb/s DS1 sig 丸善「略語大辞典」JLogosID : 11862069