ES8402129A1 - Improvements in 12-channel transmission system by airline and cable. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improvements in 12-channel transmission system by airline and cable. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Espana SAfiledCriticalAlcatel Espana SA
Priority to ES518625ApriorityCriticalpatent/ES518625A0/en
Publication of ES8402129A1publicationCriticalpatent/ES8402129A1/en
Publication of ES518625A0publicationCriticalpatent/ES518625A0/en
Device for transmission of 12 channels by aerial line and by cable.consta of a cylinder of transfer of channels (1), a circuit of transfer of group or repeater terminal (2), a circuit of line (4), a circuit of feeding (5), a frequency generator (6), a circuit of alarms (7) and another of telealarms (8), as well as block circuits (9) and of orders (10). (Machine-translation by Google Translate, not legally binding)
ES518625A1982-12-281982-12-28
IMPROVEMENTS IN THE 12-CHANNEL TRANSMISSION SYSTEM BY AIRLINE AND BY CABLE.
GrantedES518625A0
(en)
Circuit arrangement for transmitting line or selecton signals on the telephone lines, mainly for telephone sets, line equipments of the telephone exchanges, long-distance exchanges and/or line extensing devices