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Das Bell No.1 Electronic Switching System … Das Bell No.1 Electronic Switching System (kurz 1ESS) ist die erste regulär eingesetzte Vermittlungsstelle für Telekommunikation, die rein speicherprogrammiert arbeitete. 1ESS wurde 1965 in Succasunna, N.J., USA erstmals in Betrieb genommen. 1ESS verwendet einen redundanten Zentralprozessor in Harvard-Architektur. Telekommunikationsdienste können seither flexibel programmiert werden. Kompatibles Nachfolgesystem war das 1ASS mit einem schnelleren Prozessor und einen kompakteren Aufbau als das Vorgängersystem. 1ASS wurde 1976 eingeführt. Die letzte #1 ESS Vermittlungsstelle der Vereinigten Staaten von Amerika befand sich in Odessa (Texas) und wurde am 17. Juni 2017 auf ein VoIP-basiertes System umgestellt. Sie war 43 Jahre in Betrieb.m umgestellt. Sie war 43 Jahre in Betrieb.
, The Number One Electronic Switching System … The Number One Electronic Switching System (1ESS) was the first large-scale stored program control (SPC) telephone exchange or electronic switching system in the Bell System. It was manufactured by Western Electric and first placed into service in Succasunna, New Jersey, in May 1965. The switching fabric was composed of a reed relay matrix controlled by wire spring relays which in turn were controlled by a central processing unit (CPU). The 1AESS central office switch was a plug compatible, higher capacity upgrade from 1ESS with a faster 1A processor that incorporated the existing instruction set for programming compatibility, and used smaller remreed switches, fewer relays, and featured disk storage. It was in service from 1976 to 2017.rage. It was in service from 1976 to 2017.
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The Number One Electronic Switching System … The Number One Electronic Switching System (1ESS) was the first large-scale stored program control (SPC) telephone exchange or electronic switching system in the Bell System. It was manufactured by Western Electric and first placed into service in Succasunna, New Jersey, in May 1965. The switching fabric was composed of a reed relay matrix controlled by wire spring relays which in turn were controlled by a central processing unit (CPU).rolled by a central processing unit (CPU).
, Das Bell No.1 Electronic Switching System … Das Bell No.1 Electronic Switching System (kurz 1ESS) ist die erste regulär eingesetzte Vermittlungsstelle für Telekommunikation, die rein speicherprogrammiert arbeitete. 1ESS wurde 1965 in Succasunna, N.J., USA erstmals in Betrieb genommen. 1ESS verwendet einen redundanten Zentralprozessor in Harvard-Architektur. Telekommunikationsdienste können seither flexibel programmiert werden. Kompatibles Nachfolgesystem war das 1ASS mit einem schnelleren Prozessor und einen kompakteren Aufbau als das Vorgängersystem. 1ASS wurde 1976 eingeführt.rgängersystem. 1ASS wurde 1976 eingeführt.
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Number One Electronic Switching System
, Bell No. 1 ESS
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