ck recovery, Ethernet, 306 user parts, 381-384 clumping effect, 531 CCITT supergroup, formation of, 83, 84f CMTS (cable modem termination system), 452 CCITT V modems, 274-275 coaxial cable, 196, 244 cell delay variation (CDV), ATM, 531 distance limitations of, 454 cell delineation/scrambling, ATM, 520 electrical characteristics of, 245-246 cell loss priority (CLP) field, 519 coaxial cable transmission, 34-35 cell loss ratio, ATM, 532 coaxial cable transmission systems, 244-246, 433 cell rate decoupling, 520 cable characteristics for, 245 cell splitting, 478 CATV, 439-440 cell transfer delay, ATM, 531 cochannel interference, 476-477, 478 cellular digital packet data (CDPD), 450 code-block control, 552 cellular geographic serving area (CGSA), 459, 460 codebook-excited linear predictive (CELP) cellular mobile unit, 460 technique, 468, 469 cellular radio codec (coder-decoder), 118-119. See also pX64 bandwidth for, 468 kbps codec, path calculations in, 467 VoIP, 389-390 INDEX code division multiple access (CDMA), 458, concentration with range extension and gain 472-476 (CREG), 101 codes, forward-acting error correction, 256 concentrators, 74, 75f coding conditional equations, 607 digital television, 417-418 conducted transmission, 19 in pulse code modulation, 113-118 conductor gauges, loop resistance for, 96 of written information, 252-254 conductors, 33-34, 575 coding control video, 427 resistance of, 579-580 coexistence standard, 481-482 Conference European Post & Telegraph (CEPT), collision detection, 343 15, 489. See also CEPT/CT1 standard colorimetry, 422 conference television, 403, 423-427 color subcarrier, 410 configuration management, network, 540 color television, 403 congested node, action at, 336 color transmission standards, 411-413 congestion combined station, HDLC, 284 network response to, 334-335 combiners, 459 user response to, 335 command/response (C/R) bit, 331, 332 congestion control, 334-336 common (hard-wired) control, 73 ATM, 532-533 common logarithms, 593 congestion-indicating signals, 184 Commo