GB1219834A - Circuit arrangement to receive dc or ac signals in telecommunication systems, emitted via a twin-line - Google Patents

Circuit arrangement to receive dc or ac signals in telecommunication systems, emitted via a twin-line

Info

Publication number
GB1219834A
GB1219834A GB1115368A GB1115368A GB1219834A GB 1219834 A GB1219834 A GB 1219834A GB 1115368 A GB1115368 A GB 1115368A GB 1115368 A GB1115368 A GB 1115368A GB 1219834 A GB1219834 A GB 1219834A
Authority
GB
United Kingdom
Prior art keywords
signals
line
voltage
twin
receive
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
GB1115368A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1219834A publication Critical patent/GB1219834A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
GB1115368A 1967-03-11 1968-03-07 Circuit arrangement to receive dc or ac signals in telecommunication systems, emitted via a twin-line Expired GB1219834A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1967ST026614 DE1301840B (de) 1967-03-11 1967-03-11 Schaltungsanordnung zur Auswertung des Schleifenzustandes und zur Unterscheidung vonSchleifenwiderstaenden einer Fernmelde-, insbesondere Fernsprechleitung

Publications (1)

Publication Number Publication Date
GB1219834A true GB1219834A (en) 1971-01-20

Family

ID=7461053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1115368A Expired GB1219834A (en) 1967-03-11 1968-03-07 Circuit arrangement to receive dc or ac signals in telecommunication systems, emitted via a twin-line

Country Status (5)

Country Link
BE (1) BE711971A (enrdf_load_stackoverflow)
CH (1) CH504816A (enrdf_load_stackoverflow)
DE (1) DE1301840B (enrdf_load_stackoverflow)
GB (1) GB1219834A (enrdf_load_stackoverflow)
NL (1) NL6803469A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE1301840B (de) 1969-08-28
BE711971A (enrdf_load_stackoverflow) 1968-09-11
NL6803469A (enrdf_load_stackoverflow) 1968-09-12
CH504816A (de) 1971-03-15

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Legal Events

Date Code Title Description
PS Patent sealed