JPS56156057A - Fault informing system - Google Patents

Fault informing system

Info

Publication number
JPS56156057A
JPS56156057A JP5941380A JP5941380A JPS56156057A JP S56156057 A JPS56156057 A JP S56156057A JP 5941380 A JP5941380 A JP 5941380A JP 5941380 A JP5941380 A JP 5941380A JP S56156057 A JPS56156057 A JP S56156057A
Authority
JP
Japan
Prior art keywords
fulat
multiframe
synchronous signal
detect
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
JP5941380A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6151457B2 (enrdf_load_stackoverflow
Inventor
Tadahiko Kumashiro
Takeshi Sanbe
Junji Asakura
Shiro Enami
Takaaki Osaki
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
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP5941380A priority Critical patent/JPS56156057A/ja
Publication of JPS56156057A publication Critical patent/JPS56156057A/ja
Publication of JPS6151457B2 publication Critical patent/JPS6151457B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
JP5941380A 1980-05-07 1980-05-07 Fault informing system Granted JPS56156057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5941380A JPS56156057A (en) 1980-05-07 1980-05-07 Fault informing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5941380A JPS56156057A (en) 1980-05-07 1980-05-07 Fault informing system

Publications (2)

Publication Number Publication Date
JPS56156057A true JPS56156057A (en) 1981-12-02
JPS6151457B2 JPS6151457B2 (enrdf_load_stackoverflow) 1986-11-08

Family

ID=13112556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5941380A Granted JPS56156057A (en) 1980-05-07 1980-05-07 Fault informing system

Country Status (1)

Country Link
JP (1) JPS56156057A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02143768A (ja) * 1988-11-25 1990-06-01 Fujitsu Ltd 障害情報伝達方式

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02143768A (ja) * 1988-11-25 1990-06-01 Fujitsu Ltd 障害情報伝達方式

Also Published As

Publication number Publication date
JPS6151457B2 (enrdf_load_stackoverflow) 1986-11-08

Similar Documents

Publication Publication Date Title
JPS56156057A (en) Fault informing system
JPS5439518A (en) Automatic selection system for transmission mode of facsimile unit
JPS5614762A (en) Automatic circuit disconnection system of data transmission
JPS53124005A (en) Monitor system for subscriber line
JPS5624848A (en) Communication control device
JPS5466009A (en) Detection system for circuit fault of two-wire communication device
JPS5418604A (en) Optical communication system
JPS5217041A (en) System for detecting a point on a transmission line where an abnormal state occurs
JPS5739656A (en) Detection system for open subscriber line
JPS5373336A (en) System for detecting trouble in cable
JPS5390707A (en) Detecting system for circuit fault
JPS6457838A (en) Electric signal multiplexing circuit for optical module
JPS6423660A (en) Trouble noticing device at line concentrator
JPS52146104A (en) Line monitoring system
JPS53118912A (en) Malfunction preventing system for signal receiver
JPS5242307A (en) Subscriber answering detection system
JPS5364742A (en) Detection method of abnormal portion in electric network
JPS57132462A (en) Monitoring system for digital relay device
JPS5353750A (en) Abnormality detection system in i/o devices
JPS5673950A (en) Detection system for communication speed or the like
JPS57131650A (en) Jam detector
JPS5421114A (en) Identifying method for transmission mode of facsimile and its unit
JPS5718194A (en) Priority connection system of toll incoming call
JPS56164695A (en) Key telephone set
JPS55161464A (en) Line skip pulse transmission detection system in facsimile unit