D

D/H       Distribution Hub
DA        Demand Assignment
DAC       Digital-to-Analog Converter
DACS      Digital Access and Cross-connect System
DAMA      Demand Assignment Multiple Access
D-AMPS    Digital-AMPS
DARPA     Defense Advanced Project Research Agency
DAS       Dual Attachment Station (FDDI)
DAT       Digital Audio Tape
DAVIC     Digital Audio-Visual Council
DBIR      Directed Beam InfRared
DBMS      Data Base Management System
DBS       Direct Broadcast Service
DCC       Data Country Code (ATM)
DCC       Digital Compact Cassette
DCE       Data Communications Equipment
DCE       Data Circuit-terminating Equipment
DCME      Digital Circuit Multiplication Equipment
DCPSK     Differentially Coherent Phase Shift Keying
DCS       Digital Crossconnect System
DCS       Dynamic Channel Selection (DECT)
DCU       Distribution and Control Unit
DDD       Direct Distance Dialing
DDS       Dataphone Digital Service
DECS      Digitally Enhanced Cellular Services
DECT      Digital European Cordless Telecommunications
DES       Data Encryption Standard
DEW       Distant Early Warning
DFA       Doped-Fiber Amplifier
DFIR      Diffused InfRared
DHCP      Dynamic Host Configuration Protocol
DID       Direct Inward Dialing
DIP       Dedicated Inside Plant
DISA      Direct Inward System Access
DIU       Digital Interface Unit
DIX       Digital Intel Xerox (ethernet)
DLC       Digital Loop Carrier
DLCI      Data Link Control Identifier
DLSw      Data Link SWitching Service
DM        Delta Modulation
DMA       Destination Multiple Access
DMA       Direct Memory Access
DMAP      DECT Multimedia Access Profile
DMAR      Designated Marketing Area Rank
DME       Distribution Management Environment
DMI       Desktop Management Interface (interrogazione a distanza configuraz. h/w e s/w)
DN        Directory Number
DNIS      Dialed Number Identification Service
DNS       Domain Name System/Service (IP suite)
DOS       Denial Of Service
DOV       Data Over Voice
DP        Detection Point
DPC       Dynamic Power Control
DPCM      Differential Pulse Code Modulation
DPNSS     Digital Private Network Signalling System
DPRS      DECT Packet Radio Service
DQDB      Distributed Queued Dual Bus
DS        Digital Service
DS        Direct Sequence
DS        Differentiated Services over the internet (aka DiffServ)
DS-0      Digital Service, Level 0
DS-1      Digital Service, Level 1
DS-3      Digital Service, Level 3
DSA       Distribution Serving Area
DSB       Double Side Band
DSB-SC    Double Side Band - Suppressed Carrier
DS-CDMA   Direct Sequence Code Division Multiple Access
DSI       Digital Speech Interpolation (tecnica di compressione della voce)
DSLAM     Digital Subscriber Line Access Multiplexer (xDSL)
DSMA      Digital Sense Multiple Access
DSM-CC    Digital Storage Media Command and Control
DSP       Digital Signal Processing
DSS       Digital Signalling System
DSSS      Direct Sequence Spread-Spectrum
DSU       Digital Service Unit
DSU       Distributed Switching Unit
DTAM      Document Transfer And Manipulation
DTD       Document Type Definition
DTE       Data Terminal Equipment
DTH       Direct To Home
DTM       Dual Transfer Mode (GSM)
DTMF      Dual Tone MultiFrequency
DTP       Distributed Technology Platform
DUT       Device Under Test
DVB       Digital Video Broadcasting
DVD       Digital Versatile Disc
DVI       Digital Video Interactive
DVS       Digital Video System / Digital Versatile System
DWDM      Dense Wavelength Division Multiplexing
DXC       Digital Cross Connect (SDH)
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