GB532584A - Arrangements for indicating the identity of a faulty unattended repeater at a terminal or attended station - Google Patents

Arrangements for indicating the identity of a faulty unattended repeater at a terminal or attended station

Info

Publication number
GB532584A
GB532584A GB1091040A GB1091040A GB532584A GB 532584 A GB532584 A GB 532584A GB 1091040 A GB1091040 A GB 1091040A GB 1091040 A GB1091040 A GB 1091040A GB 532584 A GB532584 A GB 532584A
Authority
GB
United Kingdom
Prior art keywords
resistance
filament
thermistor
circuit
current
Prior art date
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.)
Expired
Application number
GB1091040A
Other languages
English (en)
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB532584A publication Critical patent/GB532584A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
    • H03F1/542—Replacing by standby devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Amplifiers (AREA)
GB1091040A 1939-07-21 1939-07-21 Arrangements for indicating the identity of a faulty unattended repeater at a terminal or attended station Expired GB532584A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2125039A GB532523A (en) 1939-07-21 1939-07-21 Improvements in systems for the electric transmission of signals over wires

Publications (1)

Publication Number Publication Date
GB532584A true GB532584A (en) 1941-01-27

Family

ID=10159740

Family Applications (3)

Application Number Title Priority Date Filing Date
GB1091040A Expired GB532584A (en) 1939-07-21 1939-07-21 Arrangements for indicating the identity of a faulty unattended repeater at a terminal or attended station
GB2125039A Expired GB532523A (en) 1939-07-21 1939-07-21 Improvements in systems for the electric transmission of signals over wires
GB1080640A Expired GB532582A (en) 1939-07-21 1939-07-21 Arrangements for indicating the geographical position of a faulty submarine cable repeater

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB2125039A Expired GB532523A (en) 1939-07-21 1939-07-21 Improvements in systems for the electric transmission of signals over wires
GB1080640A Expired GB532582A (en) 1939-07-21 1939-07-21 Arrangements for indicating the geographical position of a faulty submarine cable repeater

Country Status (3)

Country Link
BE (1) BE441289A (https=)
FR (1) FR957159A (https=)
GB (3) GB532584A (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1185393A (fr) * 1957-02-07 1959-07-31 Cie Ind Des Telephones Perfectionnement aux répéteurs de câbles sous-marins

Also Published As

Publication number Publication date
GB532523A (en) 1941-01-27
BE441289A (https=) 1900-01-01
GB532582A (en) 1941-01-27
FR957159A (https=) 1950-02-16

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