JPS6460123A - Order wire line system for loop-shaped transmitting path - Google Patents

Order wire line system for loop-shaped transmitting path

Info

Publication number
JPS6460123A
JPS6460123A JP21742487A JP21742487A JPS6460123A JP S6460123 A JPS6460123 A JP S6460123A JP 21742487 A JP21742487 A JP 21742487A JP 21742487 A JP21742487 A JP 21742487A JP S6460123 A JPS6460123 A JP S6460123A
Authority
JP
Japan
Prior art keywords
signal
order wire
transmission
loop
wire
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.)
Pending
Application number
JP21742487A
Other languages
Japanese (ja)
Inventor
Hiroshi Minowa
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 JP21742487A priority Critical patent/JPS6460123A/en
Publication of JPS6460123A publication Critical patent/JPS6460123A/en
Pending legal-status Critical Current

Links

Landscapes

  • Small-Scale Networks (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To attain conversation between all order wire equipments only when a line is nor delimited at a troubled spot by preventing an echo from being generated through an order wire line even when a double order wire line is constituted in a loop-shaped transmitting path. CONSTITUTION:A transmission switching device 1 is provided to input an order wire signal to the transmitting input of both edges station repeating installations 26 and 28 (a clock-wise rotation wire transmission part 7 and a counter clock- wise rotation wire transmission part 8) and a transmission signal distributor 2 is provided to transmit a signal only in a direction from an input to an output. On the other hand, a reception signal gathering device 3 and a reception switching device 4 are provided to receive a reception signal to appear in the recepting output of the both edges station repeating installations 26 and 28 (a clock-wise rotation wire signal reception part 10 and a counter clock-wise rotation wire signal reception part 9). Thus, when a trouble is generated in the transmission path and the trouble is not simultaneously generated in two numbers, the conversation with the all order wire devices provided in a loop- shaped transmission path 6 can be executed.
JP21742487A 1987-08-31 1987-08-31 Order wire line system for loop-shaped transmitting path Pending JPS6460123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21742487A JPS6460123A (en) 1987-08-31 1987-08-31 Order wire line system for loop-shaped transmitting path

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21742487A JPS6460123A (en) 1987-08-31 1987-08-31 Order wire line system for loop-shaped transmitting path

Publications (1)

Publication Number Publication Date
JPS6460123A true JPS6460123A (en) 1989-03-07

Family

ID=16703994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21742487A Pending JPS6460123A (en) 1987-08-31 1987-08-31 Order wire line system for loop-shaped transmitting path

Country Status (1)

Country Link
JP (1) JPS6460123A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07303149A (en) * 1994-05-09 1995-11-14 Nec Corp Order wire communication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07303149A (en) * 1994-05-09 1995-11-14 Nec Corp Order wire communication system

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