Data Communications Networking Devices - 4th Ed.pdf

INDEX ___________________________________________________________________________ 855V.22 bis modem 389±91V.22 modem 383±5V.23 modem 387±8V.24 standard 77V.26 modem 388±9V.27 modem 391±3V.29 modem 393±5V.32 bis modem 399±405V.32 modem 395±6V.32 terbo modem 406±9non-linear decoding 409non-linear encoding 407±9operation 406signal element coding 406±7V.33 modem 405V.34 modem 411asymmetrical transmission 412auxiliary channel 412non-linear encoding 413operation 414options 412precoding 413upgrades 414±15V.34 modulation 411±12V.35 93V.42 bis data compression 459±61V-series 64Value-added networks 185±6Vector distance protocol 575±6Version ®eld 214V.Fast modem 410V.FC modem 410Virtual Channel Identi®er VCI)260±1, 264Virtual circuit packet networks 187Virtual circuits 205±8Virtual Path Identi®er VPI) 260,264Vocoding 661Voice circuit parameters 366Voice digitization 200, 659FRADs 697Voice interface cards 670Voice over Frame Relay VoFR)696Implementation Agreement IA)for 697Waveform coding 659±61Wide Area Networks WANs)171±268comparison to LANs 270±2data concentration equipment625±739evolution of service offerings 17±22factors to consider 4fundamental concepts 1±169overview 171±2topology 35transmission equipment 351±537transmission facilities 172types of services and transmissiondevices 5±22Wide area telephone service WATS)10±11Window ®eld 211X3 standards committee 59±60X3S3 committee 60, 61X.20 95±6X.21 95±6X.21 bis 98, 188X.25 188, 194, 587XMODEM 51±4, 126±8, 443XMODEM-1K 132XMODEM/CRC 128XON/XOFF 441YMODEM 53, 129±31, 443YMODEM-G 132Zero suppression 527ZMODEM 133±4, 443