GB665952A - Improvements in or relating to fault locating arrangements for electric carrier current communication systems - Google Patents

Improvements in or relating to fault locating arrangements for electric carrier current communication systems

Info

Publication number
GB665952A
GB665952A GB27089/49A GB2708949A GB665952A GB 665952 A GB665952 A GB 665952A GB 27089/49 A GB27089/49 A GB 27089/49A GB 2708949 A GB2708949 A GB 2708949A GB 665952 A GB665952 A GB 665952A
Authority
GB
United Kingdom
Prior art keywords
repeaters
repeater
faulty
fault
group
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
GB27089/49A
Other languages
English (en)
Inventor
Bent Bulow Jacobsen
Charles Trevor Daly
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 GB665952A publication Critical patent/GB665952A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/16—Monitoring arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H04B17/401—Monitoring; Testing of relay systems with selective localization
    • H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/404—Monitoring; Testing of relay systems with selective localization using different frequencies selected by local filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
GB27089/49A 1949-10-21 1949-10-21 Improvements in or relating to fault locating arrangements for electric carrier current communication systems Expired GB665952A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB302747X 1949-10-21

Publications (1)

Publication Number Publication Date
GB665952A true GB665952A (en) 1952-02-06

Family

ID=10305047

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27089/49A Expired GB665952A (en) 1949-10-21 1949-10-21 Improvements in or relating to fault locating arrangements for electric carrier current communication systems

Country Status (5)

Country Link
BE (1) BE498814A (enrdf_load_stackoverflow)
CH (1) CH302747A (enrdf_load_stackoverflow)
FR (1) FR1029593A (enrdf_load_stackoverflow)
GB (1) GB665952A (enrdf_load_stackoverflow)
NL (2) NL77489C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010111B (de) * 1954-02-09 1957-06-13 Philips Nv UEberwachungseinrichtung fuer eine Traegerfrequenz-Fernsprechverbindung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010111B (de) * 1954-02-09 1957-06-13 Philips Nv UEberwachungseinrichtung fuer eine Traegerfrequenz-Fernsprechverbindung

Also Published As

Publication number Publication date
CH302747A (fr) 1954-10-31
BE498814A (enrdf_load_stackoverflow) 1900-01-01
NL77489C (enrdf_load_stackoverflow) 1900-01-01
FR1029593A (fr) 1953-06-03
NL156720B (enrdf_load_stackoverflow)

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