GB1111574A - Improvements in or relating to telecommunications exchange systems - Google Patents

Improvements in or relating to telecommunications exchange systems

Info

Publication number
GB1111574A
GB1111574A GB3786866A GB3786866A GB1111574A GB 1111574 A GB1111574 A GB 1111574A GB 3786866 A GB3786866 A GB 3786866A GB 3786866 A GB3786866 A GB 3786866A GB 1111574 A GB1111574 A GB 1111574A
Authority
GB
United Kingdom
Prior art keywords
exchange systems
relating
telecommunications exchange
aug
junctors
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
GB3786866A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1111574A publication Critical patent/GB1111574A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Particle Accelerators (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Meter Arrangements (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

1,111,574. Automatic exchange systems. SIEMENS A.G. 24 Aug., 1966 [25 Aug., 1965], No. 37868/66. Heading H4K. Timing in a junction circuit is effected by a counter stepped from a pulse source common to all such junctors and producing pulses with a mark/space ratio less than unity.
GB3786866A 1965-08-25 1966-08-24 Improvements in or relating to telecommunications exchange systems Expired GB1111574A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0099032 1965-08-25

Publications (1)

Publication Number Publication Date
GB1111574A true GB1111574A (en) 1968-05-01

Family

ID=7521918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3786866A Expired GB1111574A (en) 1965-08-25 1966-08-24 Improvements in or relating to telecommunications exchange systems

Country Status (4)

Country Link
BE (1) BE685968A (en)
DE (1) DE1462304A1 (en)
GB (1) GB1111574A (en)
SE (1) SE301505B (en)

Also Published As

Publication number Publication date
DE1462304A1 (en) 1969-03-20
SE301505B (en) 1968-06-10
BE685968A (en) 1967-02-27

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