JPS58148548A - デジタル中継伝送路の監視方式 - Google Patents

デジタル中継伝送路の監視方式

Info

Publication number
JPS58148548A
JPS58148548A JP57032145A JP3214582A JPS58148548A JP S58148548 A JPS58148548 A JP S58148548A JP 57032145 A JP57032145 A JP 57032145A JP 3214582 A JP3214582 A JP 3214582A JP S58148548 A JPS58148548 A JP S58148548A
Authority
JP
Japan
Prior art keywords
signal
circuit
transmission line
relay transmission
monitoring
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
JP57032145A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6362148B2 (enrdf_load_stackoverflow
Inventor
Yoshihiro Hayashi
林　義博
Nobuyuki Tokura
戸倉　信之
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP57032145A priority Critical patent/JPS58148548A/ja
Publication of JPS58148548A publication Critical patent/JPS58148548A/ja
Publication of JPS6362148B2 publication Critical patent/JPS6362148B2/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
    • H04B17/401—Monitoring; Testing of relay systems with selective localization
    • H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/403—Monitoring; Testing of relay systems with selective localization using different frequencies generated by local oscillators

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)
JP57032145A 1982-03-01 1982-03-01 デジタル中継伝送路の監視方式 Granted JPS58148548A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57032145A JPS58148548A (ja) 1982-03-01 1982-03-01 デジタル中継伝送路の監視方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57032145A JPS58148548A (ja) 1982-03-01 1982-03-01 デジタル中継伝送路の監視方式

Publications (2)

Publication Number Publication Date
JPS58148548A true JPS58148548A (ja) 1983-09-03
JPS6362148B2 JPS6362148B2 (enrdf_load_stackoverflow) 1988-12-01

Family

ID=12350725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57032145A Granted JPS58148548A (ja) 1982-03-01 1982-03-01 デジタル中継伝送路の監視方式

Country Status (1)

Country Link
JP (1) JPS58148548A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61134146A (ja) * 1984-11-30 1986-06-21 コンパニー・アンデユストリエル・デ・テレコミユニカシオン・セイテ‐アルカテル デイジタル伝送リンク用遠隔信号伝送の方法及び装置
JPS61134147A (ja) * 1984-11-30 1986-06-21 コンパニー・アンデユストリエル・デ・テレコミユニカシオン・セイテ‐アルカテル デイジタル伝送リンクによつて送られるデータに替えてメツセージを使用することにより遠隔信号を送信する方法及び装置
US6929831B2 (en) 2001-09-15 2005-08-16 Trikon Holdings Limited Methods of forming nitride films

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61134146A (ja) * 1984-11-30 1986-06-21 コンパニー・アンデユストリエル・デ・テレコミユニカシオン・セイテ‐アルカテル デイジタル伝送リンク用遠隔信号伝送の方法及び装置
JPS61134147A (ja) * 1984-11-30 1986-06-21 コンパニー・アンデユストリエル・デ・テレコミユニカシオン・セイテ‐アルカテル デイジタル伝送リンクによつて送られるデータに替えてメツセージを使用することにより遠隔信号を送信する方法及び装置
US6929831B2 (en) 2001-09-15 2005-08-16 Trikon Holdings Limited Methods of forming nitride films

Also Published As

Publication number Publication date
JPS6362148B2 (enrdf_load_stackoverflow) 1988-12-01

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