JPS5272516A - Obstruction test in loop transmission system - Google Patents

Obstruction test in loop transmission system

Info

Publication number
JPS5272516A
JPS5272516A JP14850675A JP14850675A JPS5272516A JP S5272516 A JPS5272516 A JP S5272516A JP 14850675 A JP14850675 A JP 14850675A JP 14850675 A JP14850675 A JP 14850675A JP S5272516 A JPS5272516 A JP S5272516A
Authority
JP
Japan
Prior art keywords
transmission system
test
loop transmission
obstruction
obstruction test
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.)
Granted
Application number
JP14850675A
Other languages
Japanese (ja)
Other versions
JPS5761225B2 (en
Inventor
Norisuke Miyazaki
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 JP14850675A priority Critical patent/JPS5272516A/en
Publication of JPS5272516A publication Critical patent/JPS5272516A/en
Publication of JPS5761225B2 publication Critical patent/JPS5761225B2/ja
Granted 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

Abstract

PURPOSE:A plural number of transmission channels are provided by classifying thermint in-use systems and standby systems; and when obstruction of the transmission channel occurs, first the test is carried out by connecting the transmitter to the receiver of the lst station and the test is carried out subsequently, so that the number of links will ot be accumulated.
JP14850675A 1975-12-15 1975-12-15 Obstruction test in loop transmission system Granted JPS5272516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14850675A JPS5272516A (en) 1975-12-15 1975-12-15 Obstruction test in loop transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14850675A JPS5272516A (en) 1975-12-15 1975-12-15 Obstruction test in loop transmission system

Publications (2)

Publication Number Publication Date
JPS5272516A true JPS5272516A (en) 1977-06-17
JPS5761225B2 JPS5761225B2 (en) 1982-12-23

Family

ID=15454273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14850675A Granted JPS5272516A (en) 1975-12-15 1975-12-15 Obstruction test in loop transmission system

Country Status (1)

Country Link
JP (1) JPS5272516A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893202A (en) * 1972-03-10 1973-12-03
JPS5022505A (en) * 1973-05-30 1975-03-11

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893202A (en) * 1972-03-10 1973-12-03
JPS5022505A (en) * 1973-05-30 1975-03-11

Also Published As

Publication number Publication date
JPS5761225B2 (en) 1982-12-23

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