providers (CVSD), 206 (CSPs), 465-466 control channel, 319 community antenna television control field (Data Link Layer), 115 (CATV), 303 convergence sublayer (AAL), 383 competitive access providers (CAPs), 140 Copps, Michael, 236 competitive clipping, 208 core transport, 18 (See also wide area competitive local exchange carriers (see networks) CLECs) COs (central offices, telephone Complementary Code Keying (CCK), network), 151, 155-164 354-355 ATU-C, 294 complementary colors, 70-72 cable vault, 155-156, 159 component manufacturers, 466-469 connections between, 164-167 component video, 273 as inside plant, 197 composite video, 273 Main Distribution Frame, 156, compression, 67-68, 70-72 159-162 digital, 271 power for, 156-159 JPEG, 74,271 CPU (central processing unit), 244-246 motion JPEG, 276 cross-connect systems, 421-422 MPEG, 79-87, 275-276 cross-ownership rules, 238 of PAM sample values, 204 cross-phase modulation (XPM), 405 CompuServe, 78 crosstalk, 300 Computer Emergency Response Team cryptography, 85-86 (CERT), 38 CSMA/CD (Carrier Sense, Multiple Computer Enquiry II, 137 Access with Collision Detection), computers, 244-256 118, 260, 261, 267, 268 bus, 251-252 Custom Local Area Signaling Services CPU, 245-246 (CLASS), 146, 147 history and evolution of, 252-256 Cyclic Redundancy Check (CRC), I/O devices, 251 110-116 Index dial tone generator, 144 digital signaling, 26-28, 200-208 D1 framing, 169 Digital Speech Interpolation (DSI), D4 (superframe) framing, 170-171 207-208 data: digital subscriber line (see DSL) applications for, 282 Digital Subscriber Line Access signaling VS., 28 Multiplexer (see DSLAM) wireless, 328-329 digital technology, 21 data circuit terminating equipment digital video, 274-275 (DCE), 16 direct sequence spread spectrum data communications, 44-45 (DSSS), 351-354 binary arithmetic, 49-52 DirecTV, 349, 460, 464 defined, 2, 44 discovery packet, 97 layers of, 45 discrete cosine transform, 76-77 logical layering, 52-57 disk formatting, 248-250 networks architecture, 45-49 disk optimization u