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Digital Transmission Technology
PCM Switching Technology
Data Switching and Computer Communications
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access pulse shifters ALOHA analog signal backward path blocking probability buffer memory CCITT circuit switching clock coaxial cable command connection data frame data link DATAPAC decoder delta modulation Denoting digital data network digital stream distribution DTE or DCE employed encoder error Figure frame synchronization frequency function gate stages HOST Inose input integrated interface junctor matching kb/s linear-graph logical channel Mb/s multiplexing network configuration node number of junctor originating line concentrator oscillator output packet switching pair PCM switching phase comparator Proc procedure processor protocol pulse code modulation pulse shifters quantizing queue receiving end reset response sending sequence server shift register shown in Fig slot interchange slotted ALOHA space-division speech signals speed subscriber techniques telecommunications telephone terminating line concentrator time-division buses time-division multiplexity time-division switching time-division switching network tion toll switching traffic transfer transmitted trunks variable virtual call