JPS54108511A - Testing method for repeater of individual amplifier type - Google Patents

Testing method for repeater of individual amplifier type

Info

Publication number
JPS54108511A
JPS54108511A JP1571678A JP1571678A JPS54108511A JP S54108511 A JPS54108511 A JP S54108511A JP 1571678 A JP1571678 A JP 1571678A JP 1571678 A JP1571678 A JP 1571678A JP S54108511 A JPS54108511 A JP S54108511A
Authority
JP
Japan
Prior art keywords
repeater
distorted
frequency
adjacent
repeaters
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.)
Pending
Application number
JP1571678A
Other languages
Japanese (ja)
Inventor
Teruo Hata
Masaaki Takahashi
Fumio Ogawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP1571678A priority Critical patent/JPS54108511A/en
Publication of JPS54108511A publication Critical patent/JPS54108511A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To make it possible to prevent adjacent distorted waves from arriving in reverse order with a time difference between the both made large, by providing a bypass circuit which allows distorted waves different in frequency to return from an adjacent repeater. CONSTITUTION:Repeaters (n) and (n+2) arranged on the transmission line on a two-wire transmission system send back a distorted wave of frequency (fH0) and repeaters (n) and (n+2) send back a distorted wave of frequency (fH1). In this case, a test signal by a distorted wave passing through a fixed bypass circuit is sent out by receiving distortions from terminal stations 1 and 12 by an amplifier, and the distorted wave sent back from each repeater is detected to test each repeater. Consequently, it can be prevented that adjacent distorted waves arrive in reverse order with the time difference between them made large.
JP1571678A 1978-02-14 1978-02-14 Testing method for repeater of individual amplifier type Pending JPS54108511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1571678A JPS54108511A (en) 1978-02-14 1978-02-14 Testing method for repeater of individual amplifier type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1571678A JPS54108511A (en) 1978-02-14 1978-02-14 Testing method for repeater of individual amplifier type

Publications (1)

Publication Number Publication Date
JPS54108511A true JPS54108511A (en) 1979-08-25

Family

ID=11896479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1571678A Pending JPS54108511A (en) 1978-02-14 1978-02-14 Testing method for repeater of individual amplifier type

Country Status (1)

Country Link
JP (1) JPS54108511A (en)

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