JPS636187B2 - - Google Patents

Info

Publication number
JPS636187B2
JPS636187B2 JP55133362A JP13336280A JPS636187B2 JP S636187 B2 JPS636187 B2 JP S636187B2 JP 55133362 A JP55133362 A JP 55133362A JP 13336280 A JP13336280 A JP 13336280A JP S636187 B2 JPS636187 B2 JP S636187B2
Authority
JP
Japan
Prior art keywords
transmission
signal
transmission line
switching
input signal
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
JP55133362A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5758439A (en
Inventor
Masahiro Tada
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 JP55133362A priority Critical patent/JPS5758439A/ja
Publication of JPS5758439A publication Critical patent/JPS5758439A/ja
Publication of JPS636187B2 publication Critical patent/JPS636187B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
JP55133362A 1980-09-25 1980-09-25 Data transmission device Granted JPS5758439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55133362A JPS5758439A (en) 1980-09-25 1980-09-25 Data transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55133362A JPS5758439A (en) 1980-09-25 1980-09-25 Data transmission device

Publications (2)

Publication Number Publication Date
JPS5758439A JPS5758439A (en) 1982-04-08
JPS636187B2 true JPS636187B2 (OSRAM) 1988-02-08

Family

ID=15102943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55133362A Granted JPS5758439A (en) 1980-09-25 1980-09-25 Data transmission device

Country Status (1)

Country Link
JP (1) JPS5758439A (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60187699A (ja) * 1984-03-07 1985-09-25 Teikoku Piston Ring Co Ltd 耐摩耗性に優れた複合鉄めつき
JPS6328151A (ja) * 1986-07-22 1988-02-05 Yamatake Honeywell Co Ltd 多重ル−プ伝送系の切替装置

Also Published As

Publication number Publication date
JPS5758439A (en) 1982-04-08

Similar Documents

Publication Publication Date Title
JPS636187B2 (OSRAM)
JPS5941620B2 (ja) 二重系ル−プ伝送システムのル−プバック方式
JPS58138146A (ja) ル−プ伝送システムの折り返し制御方法
JPS6175651A (ja) 変復調装置
JPS647709B2 (OSRAM)
JPS5961237A (ja) 光デ−タウエイシステム
JPS5981949A (ja) デ−タ伝送装置
JPS60183835A (ja) 中継器監視制御信号入力断回路
JPS5970029A (ja) 中継器監視回路
JPH0370947B2 (OSRAM)
JPS6143035A (ja) 遠方監視制御装置
JPS5961249A (ja) ル−プ式デ−タ伝送方式
JPS61283253A (ja) 伝送制御方式
JPH0318378B2 (OSRAM)
JPS61283254A (ja) 伝送制御方式
JPS6145640A (ja) 回線切替装置
JPS61187444A (ja) 集線装置の診断方法
JPH0758973B2 (ja) ポ−リング方式遠方監視制御装置
JPS6113841A (ja) ル−プ通信路制御方式
JPS598451A (ja) 伝送制御装置
JPH0376059B2 (OSRAM)
JPS61283246A (ja) 伝送制御方式
JPS60125039A (ja) デ−タ伝送装置
JPS60162329A (ja) デ−タハイウエイ装置
JPS63292742A (ja) ル−プ式デ−タ伝送路の回線切換方式