NO121814B - - Google Patents

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Publication number
NO121814B
NO121814B NO1587/69A NO158769A NO121814B NO 121814 B NO121814 B NO 121814B NO 1587/69 A NO1587/69 A NO 1587/69A NO 158769 A NO158769 A NO 158769A NO 121814 B NO121814 B NO 121814B
Authority
NO
Norway
Prior art keywords
signal
modulator
substation
computer
unit
Prior art date
Application number
NO1587/69A
Other languages
English (en)
Norwegian (no)
Inventor
Mattsson Oe
W Widl
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of NO121814B publication Critical patent/NO121814B/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)
  • Communication Control (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Hardware Redundancy (AREA)
NO1587/69A 1968-04-18 1969-04-17 NO121814B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE5174/68A SE308038B (sv) 1968-04-18 1968-04-18

Publications (1)

Publication Number Publication Date
NO121814B true NO121814B (sv) 1971-04-13

Family

ID=20265872

Family Applications (1)

Application Number Title Priority Date Filing Date
NO1587/69A NO121814B (sv) 1968-04-18 1969-04-17

Country Status (5)

Country Link
US (1) US3581075A (sv)
DE (1) DE1919958B2 (sv)
GB (1) GB1262689A (sv)
NO (1) NO121814B (sv)
SE (1) SE308038B (sv)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2040161C3 (de) * 1970-08-12 1974-03-28 Siemens Ag, 1000 Berlin U. 8000 Muenchen Schaltungsanordnung für eine Teilnehmerstelle, die mit der Teilnehmerleitung über eine Steckverbindung lösbar verbunden ist
US4245343A (en) * 1978-09-22 1981-01-13 Data Line Corporation Automatic shunt device
SE417149B (sv) * 1979-03-30 1981-02-23 Ericsson Telefon Ab L M Overvakningssett och - anordning for signalamplitudomvandlare
FR2492131A1 (fr) * 1980-10-15 1982-04-16 Aero Etudes Conseils Procede et dispositif d'interdiction de propagation d'erreurs dans un processeur de securite
JPS589488A (ja) * 1981-07-09 1983-01-19 Pioneer Electronic Corp 複数の中央演算処理装置を有するシステムの中央演算処理装置の復帰機構
US4654661A (en) * 1983-03-29 1987-03-31 The United States Of America As Represented By The Secretary Of The Air Force Two fault tolerant transmitter activator
DE3445521A1 (de) * 1984-12-13 1986-06-19 Siemens AG, 1000 Berlin und 8000 München Schnittstellenbaustein
US4763329A (en) * 1986-02-10 1988-08-09 Techlan, Inc. Modular data routing system
JPS62227243A (ja) * 1986-03-29 1987-10-06 Toshiba Corp 伝送制御方式
US4916697A (en) * 1988-06-24 1990-04-10 International Business Machines Corporation Apparatus for partitioned clock stopping in response to classified processor errors
US5404359A (en) * 1992-06-29 1995-04-04 Tandem Computers Incorporated Fail safe, fault tolerant circuit for manufacturing test logic on application specific integrated circuits
JP2648796B2 (ja) * 1993-10-12 1997-09-03 富士通株式会社 データ伝送異常検出方式およびデータ伝送機器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273017A (en) * 1963-01-07 1966-09-13 Gen Electric Ground fault responsive directional comparison protective system for an electric powder transmission line
US3444321A (en) * 1965-09-11 1969-05-13 Athanasius J Pantos Defective circuit detector
US3436479A (en) * 1966-04-11 1969-04-01 Bell Telephone Labor Inc Check circuit for comparing the input and output of data repeaters
US3440337A (en) * 1966-12-28 1969-04-22 Bell Telephone Labor Inc Synchronous data repeater having noncompatible signal bypass

Also Published As

Publication number Publication date
SE308038B (sv) 1969-01-27
DE1919958B2 (de) 1970-09-10
DE1919958A1 (de) 1969-11-27
GB1262689A (en) 1972-02-02
US3581075A (en) 1971-05-25

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