The London Underground railway covers 668 miles of surface and tube track, served by 272 stations, and carries over 2 million passengers every working day. In 1979 this busy undertaking decided to replace its telephone system, which is vital to the efficient operation of the railway and administrative organisation. The old one was a Strowger system of the 40's. The author gives the background of the project and describes the various parts of the provision of MD 110 exchanges, optical fibre transmission systems, the cut-over and the organisation required to complete the task.
The renewal of the London underground telecommunications network
Erneuerung des Nachrichtennetzes der Londoner U-Bahn
Ericsson Review ; 62 , 4 ; 192-202
1985
11 Seiten, 11 Bilder, 6 Quellen
Aufsatz (Zeitschrift)
Englisch
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