DoCoMo, 366 frames in, 113-116 DOCSISTM 2.0. 310, 455, 463 functions of, 113 DOCSIS® (Data Over Cable Service protocols in, 118-119 Interface Specification), 309-310 Data Over Cable Service Interface Dolby, Ray, 273 Specification (DOCSIS), 309-310 Domain Name Server (DNS), 107 data terminal equipment (DTE), 16 Domain Name System (DNS), 442-443 datagram service, 98 (See also dotted decimal notation, 439 connectionless networks) Draper, John, 165 David Sarnoff Research Institute, drop wire, 148-150 271-273 DS3 multiplexers, 177, 180 DCE (data circuit terminating DSL (digital subscriber line), 15, 119- equipment), 16 120, 291-303 De Butts, John, 128, 129 ADSL, 293-296, 298-299 dedicated circuits, 370-372 analog signaling with, 28 dedicated networks, 89-90 G.lite, 298-299 dedicated transport, 234 HDSL, 296-297 Defense Communications Agency, 37 from ILECs, 300 delay: market issues, 299-303 bounded, 265 RADSL, 297 network, 110 regulation for, 236 unbounded, 260-261 VDSL, 297 dense wavelength division multiplexing DSLAM (Digital Subscriber Line Access (see DWDM) Multiplexer), 294-295, 300 Department of Defense (DoD), 36, DSSS (direct sequence spread 343, 430 spectrum), 351-354 detect and retransmit, 116-117 DID uata terminal equipment), 16 Index dual tone, multifrequency (DTMF), EV-DV (Evolution-Data/Video), 326 144-145 excess information rate (EIR), 376 DWDM (dense wavelength division mul- Execunet decision, 137 tiplexing), 119, 403-405, 418-420 Extended Binary Coded Decimal dynamic routing protocols, 106-109 Interchange Code (see EBCDIC) extended superframe (ESF) framing, 171 exterior gateway protocols, 444 external timing (SONET), 190 EZ-Pass system, 338 E1 standard, 119 EBCDIC (Extended Binary Coded Deci- mal Interchange Code), 48, 50, 52 E-Carrier, 172, 201 EDGE (Enhanced Data Rate for Global false flags, 114-115 Evolution), 324-326, 335 Faraday, Michael, 130 edge-emitting LEDs, 396, 397 far-end crosstalk (FEXT), 300 Edison, Thomas, 130, 131 far-field RFID systems, 340 Electronic Numerical Integrator and Farnsworth