Here are the most common telecom acronyms starting with D from the world of computer networking.
← Back to Full Telecom Acronyms| D | Delivery date |
| D | Destination (lamp) |
| D channel | Delta channel (Packet-switched channel of 16 kbps for either data or signaling) |
| D conditioning | A type of conditioning that controls harmonic distortion and signal-to-noise ratio to specific limits. |
| D&F | Determination and Findings |
| D* | Specific detectivity, “D star” (detector performance figure) |
| D/A | Digital to analog |
| D1 | D Channel Bank |
| D2 | D channel bank |
| D3 | D channel bank |
| D4 | D channel bank |
| D5 | D channel bank |
| DA | Data Analyst (IS) |
| DA | Directory Assistance |
| DAA | Data Access Arrangement |
| DAB | Demand Assigned Bus |
| DACS | Data Acquisition and Control System |
| DACS | Data Administration Control System |
| DACS | Digital Access and Cross-Connect System |
| DACS | Digital Access Control System (NOCC) |
| DACS | Directory Assistance Charge System |
| DACS | Directory Assistance Charging System |
| DAD | DIU Assembler/Disassembler |
| DAF | Dedicated Access Facility |
| DAF | Destination Address Field |
| DAL | Dedicated Access Line |
| DAL | Dedicated Analog Line |
| DAM | Direct Access Method |
| DAMA | Demand Assignment Multiple Access |
| DANI | Dedicated Automatic Numbering Identification |
| DAP | Distributed Array Processor |
| DAR | Defense Acquisition Regulations |
| DARC | Data Analysis and Remote Control |
| DARPA | Defense Advanced Research Projects Agency |
| DAS | Digital Analysis |
| DAS | Digital Analysis Selector |
| DAS | Directory Assistance System |
| DASD | Data Accesss Storage Device |
| DAT | Day and Time |
| DAV | Data Above Voice |
| DAX | Data Acquisition and Control |
| DB | Data Base (IS) |
| dB | Decibel |
| DB800 | 800 Translations Management System |
| DB900 | 900 Translations Management System |
| DBA | Data Base Administrator |
| DBA | Data Base Analyst (IS) |
| DBEN | Data Bus Enable |
| DBG | Diversified Brands Group (S) |
| DBIB | Dual Bus Interface Board |
| DBM | Database Manager (or Management) |
| dBm | Decibels referenced to the milliwatt scale/Power level measurement unit (0 dBm = 1 milliwatt at 1000 Hz terminated by 600 ohms impedence) |
| DBMS | Database Management System |
| dBrn | Decibels above reference noise |
| dBrnC | Weighted noise power in dBrn, measured by a noise measuring set with C-message weighting |
| DBS | Direct Broadcast Satellite |
| DBTG | Data Base Task Group |
| DBU | Dial Back-Up |
| DC | Data Collection |
| DC | Data Communications |
| DC | Design Close |
| DC | Device Controller |
| DC | Direct Connect |
| dc | Direct Current |
| DC | District of Columbia |
| dc signaling | Signaling using direct current |
| DCA | Defense Communications Agency |
| DCA | Digital Computer Association |
| DCA | Document Content Architecture |
| DCAA | Defense Contract Audit Agency |
| DCAOC | Defense Communications Agency Operations Center |
| DCC | Data Country Code (Four-digit/ISO) |
| DCC | Digital Cross-connect |
| DCC | Document Control Center |
| DCCS | Direct Common Channel Interoffice Signaling |
| DCD | Design Change Document |
| DCE | Data Communications Equipment |
| DCEC | Defense Communications Engineering Center |
| DCH | D Channel Handler |
| DCI | District Cablevision, Inc. |
| DCIS | Destination Common Channel Interoffice Signaling (AT&T) |
| DCIS | Direct Common Channel Interoffice Signaling |
| DCLU | Digital Carrier Line Unit |
| DCM | Digital Carrier Module |
| DCMS | Digital Cross-Connect Management System |
| DCN | Data Communications Network |
| DCN | Data Communications Network |
| DCO | Data Collection Operations |
| DCO | Drafting Change Order |
| DCON | Drafting Change Order Numbers |
| DCP | Data Communication Processor |
| DCP | Database Control Point |
| DCP | Digital Communications Protocol |
| DCPSK | Differentially Coherent Phase Shift Keying |
| DCPTA | Database Control Point Transport Application |
| DCPU | Directed Call Pickup Nonbarge-in |
| DCR | Directory Charge Recording (trunks) |
| DCS | Data Carrier System |
| DCS | Data Control Systems |
| DCS | Defense Communications System |
| DCS | Document Control System |
| DCSS | Digital Conference and Switching System |
| DCT | Design/Code/Test |
| DCT | Digital Carrier Trunk |
| DCT | Discrete Cosine Transform |
| DCTE | Data Circuit-Terminating Equipment |
| DCTN | Defense Commercial Telecommunications Network |
| DCTS | Dimension Custom Telephone Service |
| DCTU | Digital Carrier Trunk Unit |
| DCTU | Directly Connected Test Unit |
| DD | Direct Dialed |
| DDA | Domain Defined Attributes |
| DDAP | Detailed Distribution Area Plans |
| DDCMP | Digital Data Communications Message Protocol (Digital Equipment Corp.) |
| DDD | Digital Drop and Insert |
| DDD | Direct Distance Dialing |
| DDI | Direct Digital Interface |
| DDL | Data Definition Language |
| DDL | Data Definition Language |
| DDL | Derived Data Link |
| DDM | Data Definition Module |
| DDN | Defense Data Network |
| DDP | Distributed Data Processor |
| DDS | Dataphone Digital Service (AT&T trademark) |
| DDS | Digital Data Service (Bell Atlantic trademark) |
| DDS | Digital Data System |
| DDSBS | Duplex Dual Serial Bus Selector |
| DDSD | Delay Dial Start Dial |
| DDU | Disk Drive Unit |
| DE | Discard Eligible |
| DEC | Digital Equipment Corporation |
| DECCO | Defense Commercial Communications Office |
| DEPIC | Dual Expanded Polyethylene Insulated Cable |
| DES | Data Encryption Standard |
| DETAB | Decision Table (language) |
| DF | Distribution (ing) Frame |
| DFA | Digital Facilities Access Cabinet |
| DFARS | Department of Defense Federal Acquisition Regulations Supplement |
| DFB | Distributed Feedback (laser diode) |
| DFC | Digital Facility Center |
| DFC | Disk File Controller |
| DFD | Data Flow Diagram (IS) |
| DFI | Digital Facility (ies) Interface |
| DFMS | Digital Facility Management System |
| DFT | Discrete Fourier Transform |
| DFTAC | Distributing Frame Test Access Controller |
| DGMS | Data Generation and Management System |
| DGT | DIGITONE |
| DHNR | Dynamically Hierarchical Network Routing |
| DI | Data Interface |
| DI | Digital Interface |
| DI | Document Index |
| DI | Document Index |
| DIA | Defense Intelligence Agency |
| DIA | Document Interchange Architecture |
| DIAC | Defense Intelligence Agency Center |
| Dibit | a group of two bits |
| DID | Direct Inward Dialing (or Dialed) |
| DIF | Document Interchange Format |
| Digroup | Digitally multiplexed group of 24 channels |
| DINA | Distributed Intelligent Network Architecture |
| DIOD | Direct Inward Outward Dialing (or Dialed) |
| DIP | Dual In-line Package |
| DIP | Dual In-line Pin |
| Diplex | Simultaneous transmission/reception of two signals over a circuit or channel |
| DIRP | Device Independent Recording Package |
| DIS | Directory Information (Sub)system |
| DIS | Draft Information Standard |
| DISA | Direct Inward System Access |
| DISCO | Defense Industrial Security Clearance Office |
| DISCO | Document Imaging System for Correspondence Operation |
| DIU | Digital Interworking Unit (Northern Telecom Inc.) |
| DIVA | Digital inquiry |
| DIVCOD | Division Code Table |
| DIVRTE | Division Route Table |
| DIW | D-Inside Wire |
| DLA | Defense Logistics Agency |
| DLAOC | Defense Logistics Agency Operations Center |
| DLC | Data Line Card |
| DLC | Digital Loop Carrier |
| DLCF | Data Link Control Field |
| DLCI | Data Link Connection Identifier |
| DLCM | Digital Level Control Module |
| DLE | Data Link Escape Character |
| DLH | Distributed Line Hunting |
| DLI | Dual-Link Interface |
| DLL | Downline Load |
| DLO | Data Link Occupied |
| DLP | Data Link Processor |
| DLP | Decode Level Point |
| DLSE | Dial Line Service Evaluation |
| DLTU | Digital Line and Trunk Unit |
| DM | Data Memory |
| DM | Data Module |
| DM | Delta Modulation |
| DMA | Defense Mapping Agency |
| DMA | Direct Memory Access |
| DMAC | Direct Memory Access Controller |
| DMERT | Duplex Multi-Environment Real Time |
| DMERT | Duplex Multienvironment Real-Time Operating System |
| DMF | Database Maintenance Facility (CN) |
| DMI | Digital Multiplexed Interface |
| DMI | Dual Message Interface |
| DML | Data Manipulation Language |
| DMO | Data Modification Order |
| DMOPRO | Data Modification Process |
| DMP | Data Modification Producer |
| DMR | Defective Material Report (MFG) |
| DMS | Digital Multiplex System |
| DMS-100 | Digital Multiplex System 100 |
| DMS-MTX | Digital Multiplex System – Mobile Telephone Exchange |
| DMU | Data Manipulation Unit |
| DN | Directory Number |
| DN | Directory Number |
| DNA | Digital Network Architecture |
| DNAR | Directory Number Analysis Reporting |
| DNH | Directory Number Hunting |
| DNI | Digital Network Interconnect(ing) (bay/frame) |
| DNIC | Data Network Identifier Code |
| DNIS | Dialed Number Identification Service |
| DNPA | Data Numbering Plan Area |
| DNPIC | Directory Number Primary InterLATA Carrier |
| DNS | Domain Name Server |
| DOA | Dial Office Administration |
| DOC | Department of Commerce |
| DOC | Dynamic Overload Control |
| DoD | Department of Defense |
| DOD | Direct Outward Dialing (or Dialed) |
| DOE | Department of Energy |
| DOEd | Department of Education |
| DOI | Department of the Interior |
| DOIM | Director of Information Management |
| DOJ | Department of Justice |
| DOL | Department of Labor |
| DOPAC | Disk Oriented Property And Cost |
| DOPS | Digital Ordering and Planning System |
| DOR | Denied Originating Service |
| DOS | Disk Operating System |
| DOS/VS | Disk Operating System/Virtual Storage |
| DOSUM | Daily Operations Summary |
| DOV | Data Over Voice |
| DP | Data Processing |
| DP | Detailed Procedures |
| DP | Dial Pulsing (or Dial Pulse) |
| DPA | Delegation of Procurement Authority |
| DPA | Digital Port Adapter |
| DPAC | Dedicated Plant Assignment Card |
| DPAT | Dialing Plan Access Treatment |
| DPC | Destination Point Code |
| DPC | Destination Point Code |
| DPC | Disk Power Cabinet |
| DPCC | Disk Panel Control Cabinet |
| DPCM | Differential Pulse Code Modulation |
| DPFT | DIRP Processing File Transfer |
| dpi | Dots per inch (used with dot matrix printers) |
| DPIDB | Directly Connected Peripheral Interface Data Bus |
| DPL | Digital Private Line |
| DPLB | Digital Private Line Billing System |
| DPM | Division Plant Manager |
| DPMA | Data Processing Management Association |
| DPMR | Digital Performance Monitoring Report |
| DPN | Digital Packet Network (Northern Telecom Inc.) |
| DPO | Dial Pulse Originating |
| DPP | Distributed Processing Peripheral |
| dpps | Data Packets per Second |
| DPSK | Differential Phase Shift Keying (or Keyed) Modulation |
| DPT | Digital Pad Table |
| DQDB | Distributed Queue Dual Bus |
| DQM | Data Quality Monitor |
| DQP | Data Qualifier Packet |
| DR | Distinctive Ringing |
| DRA | Digital Recorded Announcement |
| DRAM | Digital Recorded Announcement Machine |
| DRAM | Dynamic Random Access Memory |
| DRD | Disaster Recovery Director |
| DRE | Directional Reservation Equipment (Northern Telecom Inc. DMS-200) |
| DRIP | Device Recording Independent Package |
| DRO | Destructive Read-Out |
| DRO | Disaster Recovery Organization |
| DRP | Disaster Recovery Plan |
| DRS | Data Rate Selector |
| DRS | Digital Reference Signal |
| DRS | Draft Requirements Statement (IS) |
| DRS-8 | Digital Radio System (Northern Telecom Inc.) |
| DRTLs | Dial Repeating Trunk Lines |
| DRTT | Dial Repeating Tie Trunk |
| DRZ | Directionalization |
| DS | Data Store |
| DS | Dead System (alarm) |
| DS | Design Statement (IS) |
| DS | Direct Signaling |
| DS0 | Digital Signal Level 0 |
| DS1 | Digital Signal Level 1, 1.544 Mbps; 24 PCM channels using North American signaling format (equivalent to T1) (Also know as HICAP Service) |
| DS1C | 3.152 Mbps; 48 channels (equivalent to T1C or two DS1s) |
| DS2 | Digital Signal Level 2, 6.312 Mbps; 96 channels (equivalent to T2 or four DS1s) |
| DS3 | Digital Signal Level 3, 44.736 Mbps; 672 channels (equivalent to T3 or 28 DS1s) |
| DS30 | Digital Signal Level 30, 2.56 Mbps; digital switching 30 PCM voice channels serving the network from the controllers |
| DS30A | Digital switching 30 PCM voice channels serving the controller from the peripherals |
| DS3C | 90 Mbps; 1344 channels (equivalent to T3C or two DS3s) |
| DS3D | 135 Mbps; 2016 channels (equivalent to T3D or three DS3s) |
| DS3E | 180 Mbps; 2688 channels (equivalent to T3E or four DS3s) |
| DS4 | Digital Signal Level 4, 274 Mbps; 4032 channels (equivalent to T4 or six DS3s) |
| DSA | Data Set Adapter |
| DSAP | Directory Scope Analysis Program |
| DSAS | Dataphone Select-A-Station |
| DSBAM | Double Sideband Amplitude Modulation |
| DSC | Data Set Cabinet |
| DSC | Digital Service Circuit |
| DSC | Direct Satellite Communications |
| DSCH | Dual Serial Channel |
| DSCP | Digital Service Circuit Pack/Port |
| DSE | Data Switching Exchange |
| DSE | Distributive System Environment |
| DSEA | Distribution Services Economic Analysis |
| DSI | Digital Speech Interpolation |
| DSL | Digital Subscriber Line |
| DSLAM | DSL Access Multiplexer |
| DSM | Data Switching Module |
| DSN | Defense Switched Network |
| DSN | Digital Switched Network |
| DSP | Digital Signal Processor |
| DSP | Display System Protocol |
| DSR | Daily Status Report |
| DSR | Data Signaling Rate |
| DSR | Detail Study Report (IS) |
| DSS | Decision Support System |
| DSS | Decision Support System |
| DSS | Digital Switching Systems |
| DSS | Direct Station Selection |
| DSS-W | Defense Supply Service-Washington |
| DST | Data Switch Termination |
| DSU | Data Service Unit |
| DSU | Digital Service Unit |
| DSX | Digital Cross-Connect (frame) |
| DT | Dial Tone |
| DT | Downtime |
| DTC | Digital Trunk Controller |
| DTD | Dial Tone Delay |
| DTE | Data Terminal Equipment |
| DTE | Digital Trunk Equipment |
| DTF | Dial-Tone-First |
| DTI | Data Terminal Interface |
| DTI | Digital Trunk Interface |
| DTL | Diode-Transistor Logic |
| DTM | Daily Traffic Metering/Measurement Report |
| DTM | Denied Terminating Service (or Denied Termination) |
| DTM | Diagnostic Task Monitor |
| DTM | Diagnostic Task Monitor |
| DTMF | Dual Tone Multifrequency |
| DTP | Display Transport Protocol |
| DTR | Data terminal ready |
| DTS | Dedicated Transmission Service *** |
| DTS | Destination Traffic Separation (Northern Telecom Inc. DMS-100) |
| DTS | Digital Telecommunications Switching System (U.S. Department of the Treasury) |
| DTS | Digital Test Sequence |
| DTS | Direct Termination Service |
| DTSE | Data Subscriber Terminal Equipment |
| DTS-W | Defense Telecommunications Service – Washington |
| DTT | Digital Transmission Terminal |
| DTU | Data Transfer Unit |
| DU | Data Unit |
| DU | Design Unit |
| DUNBUILD | Dynamic Table Unbuilder option |
| DUNS | Data Universal Numbering System |
| DUPSS | Dial-Up Packet Switched Service |
| DUV | Data Under Voice |
| DVM | Data Voice Module |
| DVM | Data/Voice Multiplexer (or Multiplexing) |
| DVM | Digital Volt Meter |
| DX | Duplex signaling |
| DXS | Direct Extension Selection |
| DYANA | Dynamic Analyzer |
