JPH0379899B2 - - Google Patents

Info

Publication number
JPH0379899B2
JPH0379899B2 JP15901784A JP15901784A JPH0379899B2 JP H0379899 B2 JPH0379899 B2 JP H0379899B2 JP 15901784 A JP15901784 A JP 15901784A JP 15901784 A JP15901784 A JP 15901784A JP H0379899 B2 JPH0379899 B2 JP H0379899B2
Authority
JP
Japan
Prior art keywords
error
monitoring device
monitoring
signal
circuit
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 - Lifetime
Application number
JP15901784A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6139735A (ja
Inventor
Atsushi Sanpei
Hitoshi Goto
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.)
NEC Corp
Original Assignee
Nippon Electric Co 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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP15901784A priority Critical patent/JPS6139735A/ja
Publication of JPS6139735A publication Critical patent/JPS6139735A/ja
Publication of JPH0379899B2 publication Critical patent/JPH0379899B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/40Monitoring; Testing of relay systems
    • H04B17/407Monitoring; Testing of relay systems without selective localization
    • H04B17/408Monitoring; Testing of relay systems without selective localization using successive loop-backs

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Dc Digital Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
JP15901784A 1984-07-31 1984-07-31 常時監視方式 Granted JPS6139735A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15901784A JPS6139735A (ja) 1984-07-31 1984-07-31 常時監視方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15901784A JPS6139735A (ja) 1984-07-31 1984-07-31 常時監視方式

Publications (2)

Publication Number Publication Date
JPS6139735A JPS6139735A (ja) 1986-02-25
JPH0379899B2 true JPH0379899B2 (ru) 1991-12-20

Family

ID=15684427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15901784A Granted JPS6139735A (ja) 1984-07-31 1984-07-31 常時監視方式

Country Status (1)

Country Link
JP (1) JPS6139735A (ru)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0748700B2 (ja) * 1987-02-28 1995-05-24 日本電気株式会社 Pcm中継装置の監視方式
JPH0687566B2 (ja) * 1988-08-24 1994-11-02 日本電気株式会社 折返し試験方式
CN109417425B (zh) * 2016-07-01 2022-02-18 日本电气株式会社 中继设备、监视系统和监视信息传输方法

Also Published As

Publication number Publication date
JPS6139735A (ja) 1986-02-25

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