Exchange, located near Orly Airport (Paris), is semiautomatic continuous-tape operation; 19,000 messages are handled daily, with peaks up to 24,000; mean duration of message is 55 sec, although some meteorological messages take 300 sec, corresponding to 5 m (16.4 ft) of perforated tape; outgoing traffic routed by overflow positions varies between 28 and 34% of total outgoing traffic; switching is based on principles of Pentaconta telephone switching system; exchange is equipped for 40 incoming and 40 outgoing circuits.
Telegraph transit exchange using crossbar pentaconta design
Elec Communication
Electrical Communication ; 38 , n 2
1963
6 pages
Aufsatz (Zeitschrift)
Englisch
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