JPS6360944B2 - - Google Patents

Info

Publication number
JPS6360944B2
JPS6360944B2 JP20089281A JP20089281A JPS6360944B2 JP S6360944 B2 JPS6360944 B2 JP S6360944B2 JP 20089281 A JP20089281 A JP 20089281A JP 20089281 A JP20089281 A JP 20089281A JP S6360944 B2 JPS6360944 B2 JP S6360944B2
Authority
JP
Japan
Prior art keywords
monitoring
switch circuit
repeater
signal
terminal station
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
JP20089281A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58103256A (ja
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 filed Critical
Priority to JP56200892A priority Critical patent/JPS58103256A/ja
Publication of JPS58103256A publication Critical patent/JPS58103256A/ja
Publication of JPS6360944B2 publication Critical patent/JPS6360944B2/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
    • H04B17/407—Monitoring; Testing of relay systems without selective localization

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
JP56200892A 1981-12-15 1981-12-15 伝送路の監視方式 Granted JPS58103256A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56200892A JPS58103256A (ja) 1981-12-15 1981-12-15 伝送路の監視方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56200892A JPS58103256A (ja) 1981-12-15 1981-12-15 伝送路の監視方式

Publications (2)

Publication Number Publication Date
JPS58103256A JPS58103256A (ja) 1983-06-20
JPS6360944B2 true JPS6360944B2 (enrdf_load_stackoverflow) 1988-11-25

Family

ID=16431982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56200892A Granted JPS58103256A (ja) 1981-12-15 1981-12-15 伝送路の監視方式

Country Status (1)

Country Link
JP (1) JPS58103256A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6242242B2 (ja) * 2014-02-28 2017-12-06 アイホン株式会社 インターホンシステム

Also Published As

Publication number Publication date
JPS58103256A (ja) 1983-06-20

Similar Documents

Publication Publication Date Title
JPH0527289B2 (enrdf_load_stackoverflow)
US4369523A (en) Remote control system of an optical repeater
US3860768A (en) Echo compensation circuit to erase echoes in telephone circuits
US5510925A (en) Relay transmission system including optical amplification
JP2719654B2 (ja) 光増幅中継伝送路の監視方式
JPS6360944B2 (enrdf_load_stackoverflow)
GB654380A (en) Improvements in or relating to communication systems
JPH05336042A (ja) 光中継システムの障害点標定方法および装置並びに光中継器
US20020097788A1 (en) Node device for a serial databus connecting a number of devices
JPS6223157Y2 (enrdf_load_stackoverflow)
JP3024251B2 (ja) 信号中継方式
US1891244A (en) Submarine cable
JP3003774B2 (ja) Ｐｄｓ構成の光通信システムおよびそのループバック試験方法
SU566394A2 (ru) Устройство дл непрерывного контрол качества телефонных каналов дальней св зи
JPS6154293B2 (enrdf_load_stackoverflow)
SU809652A1 (ru) Устройство дистанционного тестовогоКОНТРОл
JPH0113260B2 (enrdf_load_stackoverflow)
JPS6372244A (ja) 信号中継装置
SU1690207A1 (ru) Устройство дл контрол зан тых каналов тональной частоты
JPH0417437A (ja) 伝送路試験方法及びそのシステム
JPS6399641A (ja) 双方向通信装置
JPS5853256A (ja) デジタル中継伝送路の監視方式
JPS6313614B2 (enrdf_load_stackoverflow)
JPS6239935A (ja) 光バスネツト試験方式
JPH0528933B2 (enrdf_load_stackoverflow)