JPS5761360A - Center trouble code transmitter - Google Patents

Center trouble code transmitter

Info

Publication number
JPS5761360A
JPS5761360A JP55136243A JP13624380A JPS5761360A JP S5761360 A JPS5761360 A JP S5761360A JP 55136243 A JP55136243 A JP 55136243A JP 13624380 A JP13624380 A JP 13624380A JP S5761360 A JPS5761360 A JP S5761360A
Authority
JP
Japan
Prior art keywords
circuit
call
scan
plural number
trouble information
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
JP55136243A
Other languages
Japanese (ja)
Inventor
Hitoshi Toyama
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 JP55136243A priority Critical patent/JPS5761360A/en
Publication of JPS5761360A publication Critical patent/JPS5761360A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To make possible the connection of plural number of codes with easy costruction, by transmitting center trouble information codes which consists of plural number of code system in time system against the call from the circuit and by reducing the circuit for selection of code system. CONSTITUTION:Call display signal lines are scanned in order by using a scan circuit 13 and polarity of the call display signal is transmitted to a call detection ciruit 14. Next, when a call signal is detected, it is output to a call signal line 18 and a scan control circuit 15 stops scanning of a scan circuit 13 by using a call signal. Then, a data generation circuit 16 outputs the center trouble information code which consists of plural number of code system to a transmission data line 20 in order. Furtheromore, if the center trouble information code is transmitted to the circuit for a constant time, a data generation circuit 16 outputs the result to a data transmission completion signal line 19 and after that, the stopped scan is started to scan.
JP55136243A 1980-09-30 1980-09-30 Center trouble code transmitter Pending JPS5761360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55136243A JPS5761360A (en) 1980-09-30 1980-09-30 Center trouble code transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55136243A JPS5761360A (en) 1980-09-30 1980-09-30 Center trouble code transmitter

Publications (1)

Publication Number Publication Date
JPS5761360A true JPS5761360A (en) 1982-04-13

Family

ID=15170625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55136243A Pending JPS5761360A (en) 1980-09-30 1980-09-30 Center trouble code transmitter

Country Status (1)

Country Link
JP (1) JPS5761360A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0222951A (en) * 1988-07-12 1990-01-25 Nec Field Service Ltd Line terminating equipment diagnosing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0222951A (en) * 1988-07-12 1990-01-25 Nec Field Service Ltd Line terminating equipment diagnosing system

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