System for interlocks, traffic control centers, etc, which handles up to 80 telephone lines operating on various different principles, such as railroad PAX lines, LB and CB lines, selective ringing party lines, automatic telephone lines for traffic control, loudspeaking telephone systems, and talkback systems for shunting operations.
Multipurpose telephone for railroad telephone installations
Der Allfernsprecher, ein Bedienungsgeraet fuer die verschiedenen Fernsprechanschluesse in Eisenbahn-Betriebsstellen
Siemens Zeitschrift ; 32 , n 10
1958
4 pages
Aufsatz (Zeitschrift)
Deutsch
© Metadata Copyright Elsevier B. V. All rights reserved.
Engineering Index Backfile | 1902
|Engineering Index Backfile | 1902
|Railroad radio-telephone equipment
Engineering Index Backfile | 1929
|The telephone in railroad service
Engineering Index Backfile | 1899
|The telephone in railroad service
Engineering Index Backfile | 1901
|