JPS57190438A - Processing system for digital line fault information - Google Patents

Processing system for digital line fault information

Info

Publication number
JPS57190438A
JPS57190438A JP7443281A JP7443281A JPS57190438A JP S57190438 A JPS57190438 A JP S57190438A JP 7443281 A JP7443281 A JP 7443281A JP 7443281 A JP7443281 A JP 7443281A JP S57190438 A JPS57190438 A JP S57190438A
Authority
JP
Japan
Prior art keywords
counter
detecting
fault information
reset
digital line
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
JP7443281A
Other languages
Japanese (ja)
Inventor
Shigeki Shimazaki
Hisao Yagi
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
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7443281A priority Critical patent/JPS57190438A/en
Publication of JPS57190438A publication Critical patent/JPS57190438A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/10—Providing fault- or trouble-signals

Abstract

PURPOSE:To obtain detailed fault information by optionally selecting the reset interval of a counter counting fault outputs of a digital line to take out an optional detecting level from the counter. CONSTITUTION:A counter 4 generates a detecting output 2 in every reception of prescribed m pulse-like fault outputs 1 from a digital trunk line interface device DTL within a fized period (t). The interval (t) of a reset pulse 3 to be inputted to the counter 4 is selected from reset pulses 31-34 which have different pulse intervals respectively by the combination of values 61, 62 indicated by a detecting level setting switch 7, which controls a selector 5. Thus, a detecting output with an optional detecting level can be taken out on the basis of the set values of the switch 7.
JP7443281A 1981-05-18 1981-05-18 Processing system for digital line fault information Pending JPS57190438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7443281A JPS57190438A (en) 1981-05-18 1981-05-18 Processing system for digital line fault information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7443281A JPS57190438A (en) 1981-05-18 1981-05-18 Processing system for digital line fault information

Publications (1)

Publication Number Publication Date
JPS57190438A true JPS57190438A (en) 1982-11-24

Family

ID=13547045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7443281A Pending JPS57190438A (en) 1981-05-18 1981-05-18 Processing system for digital line fault information

Country Status (1)

Country Link
JP (1) JPS57190438A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01103061A (en) * 1987-10-15 1989-04-20 Nec Corp Signal link error rate monitor system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54147707A (en) * 1978-05-11 1979-11-19 Fujitsu Ltd Monitor system for line error rate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54147707A (en) * 1978-05-11 1979-11-19 Fujitsu Ltd Monitor system for line error rate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01103061A (en) * 1987-10-15 1989-04-20 Nec Corp Signal link error rate monitor system

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