Glossary Technology evolves at a rapid-fire pace. That’s why we’ve built an easy-to-use glossary to help you better understand the terms, technologies and trends that impact your business. Show only animated 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z D_ID D-QoS DANL DAPI DAS Data Center Data Plane Data Service Unit (DSU) Data-Link Layer dB DBA dBc - Decibel relative to carrier dBc/Hz dBd dBi dBm dBm/Hz DBS DC DCC DCCH DCE DCI DDN Dead Zone Dedicated Connection Deep Packet Inspection (DPI) Degree of Polarization (DOP) Delay Factor (DF) Dense Wavelength-Division Multiplexing (DWDM) Destination MAC Address DF DFB DFT DFT-s-OFDM DHCP DHD Dial-Up Connection Differential Phase Shift Keying (DPSK) Differentiated Services (DiffServ) Diffraction Grating DiffServ Digital coherent pluggables Digital Loop Carrier (DLC) Digital Signal Digital Subscriber Line (DSL) Digital Subscriber Line Access Multiplexer (DSLAM) Directivity Discrete Multitone Transmission (DMT) Distributed Antenna System Forum (DAS Forum) Distributed Antenna Systems (DAS) Distributed tap architecture (DTA) DIX DL DLC DMM DMRS DMT DNS Domain Name System (DNS) DOP Doppler Downstream DPI DPSK DR DRP DSL DSLAM DSP DSS DSU DTCH DTF DTMF Dual-port testing Dual-Tone Multifrequency Signaling (DTMF) Duplex DUT DVT DW DWDM DWS Dynamic Bandwidth Allocation (DBA) Dynamic Host Configuration Protocol (DHCP) Dynamic Range
