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New AutomaticExchange atMendozaNew L M Ericsson Exchanges inGothenburg, Landskrona and LeksandA main exchange with a capacityof 3,000 lines for the telephone operatingcompany, Cia Argentina deTelefonos, has been opened in Mendoza.The inaugural ceremony forthe opening of the exchange-MendozaII-which formed part of theofficial programme of the Provinceof Mendoza for the celebration ofthe Argentine Commemoration Day,was presided over by the ProvincialInterim Governor, Dr. Isidoro Busquets,and the equipment was consecratedby the Bishop of Mendoza andNeuquen, Monsenor Dr. AlfonsoMaria Buteler, seen in the photographat the service observation desk.Among other persons at the openingof the exchange, the installation ofwhich was carried out by Cia Sudamericanade Telefonos L M Ericsson,were the entire provincial governmentand general staff.The new automatic exchange atOrgryte, Gothenburg, was opened inDecember 1956. It is a central areaexchange, having direct junctions withother exchanges in the inner area ofGothenburg. The Orgryte exchangeis built on the 500-line selector system.It is of the same type as theprevious L M Ericsson exchanges inGothenburg and initially caters for7,000 subscribers. When the newexchange was opened, some 4,700subscribers from the Vasa exchangewere transferred and renumbered.This transfer enabled the latter exchangeto accept new subscribers.The new automatic exchange atLandskrona, opened in February, offersthe longest subscriber-dialled connectionsin Sweden. The exchangecomprises 7,000 lines and has equipmentfor zone traffic and full-automatictrunk traffic. It employs crossbarswitches of the Swedish TelecommunicationsAdministration typemanufactured by L M Ericsson. Thisexchange provided Landskrona withfull-automatic trunking to Stockholmand Gothenburg, among other places,via the Malmo transit exchange. Sincethe opening of the Landskrona exchangeSweden's longest subscriberdialledconnection stretches from theisland of Ven in the Sound to Singoin Roslagen, a distance of 818 kilometres.A crossbar exchange of the TelecommunicationsAdministration type,for 1,500 lines, has also been suppliedrecently by L M Ericsson to Leksand.L M Ericsson partook in the first internationalexhibition for electronics, telecommunicationsand radio, held inMexico in December 1956, through theagency of Compafiia Comercial EricssonS.A. LM Ericsson's stand presenteda general survey of the company's production.(Right) The Ericofon corner.34
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Page 3 and 4: ERICSSON REVIEWVol. XXXIV 1957RESPO
Page 5 and 6: ERICSSON REVIEWVol. XXXIV No. 1 195
Page 7 and 8: ularities serious enough to affect
Page 9 and 10: Faults at Centrum Jan.—June 1956.
Page 11 and 12: The same practice is adopted at the
Page 13 and 14: Mechanization of the Aland Telephon
Page 15 and 16: The quality of cable construction w
Page 17 and 18: exchange, while another has perhaps
Page 19 and 20: Fig. 2 X 6975IO-pair strips(From le
Page 21 and 22: •G rLrlFig. 6The combined fuse NG
Page 23 and 24: Visual Staff Locator System for Sma
Page 25 and 26: Fig. 4 x 8008Keyset KEM 3294placed
Page 27 and 28: Traffic Signals at Vasterbron, Stoc
Page 29 and 30: Three Programme Vehicle ControlThe
Page 31 and 32: x 8009 Ordinary vehicle control imp
Page 33 and 34: TownExchangeNumberof linesTownExcha
Page 35 and 36: NEWS/romAll Quarters of the WorldL
Page 37: L M Ericsson, Midsommarkransen, isa

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