frame relay assembler/disassembler (FRAD)

• DSSS (Direct Sequence Spread Spectrum)
• DSU (Data Service Unit)
• DSU (Data Service Unit)
• DTE (Data Terminal Equipment)
• DTH (Direct-To-Home)
• DTMF (Dual Tone MultiFrequency)
• D-to-A (Digital-to-Analog)
• DTV (Digital TeleVision)
• dual attached concentrator (DAC)
• dual attached station (DAS)
• dual counter-rotating ring
• dual tone multifrequency (DTMF)
• duct
• duct tape
• du jour
• dumb terminal
• duplex
• duplex
• duplex
• duty cycle
• DUV (Data Under Voice)
• DWDM (Dense Wavelength Division Multiplexing)
• dweeb
• DXC (Digital CROSS-Connect)
• DXI (Data eXchange Interface)