JPS5693455A - Line monitor system - Google Patents

Line monitor system

Info

Publication number
JPS5693455A
JPS5693455A JP17082879A JP17082879A JPS5693455A JP S5693455 A JPS5693455 A JP S5693455A JP 17082879 A JP17082879 A JP 17082879A JP 17082879 A JP17082879 A JP 17082879A JP S5693455 A JPS5693455 A JP S5693455A
Authority
JP
Japan
Prior art keywords
processing request
line
circuit
artificial
signal 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.)
Granted
Application number
JP17082879A
Other languages
Japanese (ja)
Other versions
JPS5941623B2 (en
Inventor
Yukinori Inoue
Kanji Suzuki
Yasuhiro Nakahara
Hiroo Mizuguchi
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 JP54170828A priority Critical patent/JPS5941623B2/en
Publication of JPS5693455A publication Critical patent/JPS5693455A/en
Publication of JPS5941623B2 publication Critical patent/JPS5941623B2/en
Expired 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
    • H04L12/02—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer And Data Communications (AREA)
  • Dc Digital Transmission (AREA)
  • Communication Control (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE:To shorten the signal line monitor interval and improve the line use efficiency to detect the line fault in the early stage, by generating an artificial character processing request independently of the character processing request in the line corresponding part. CONSTITUTION:The common control part turns on artificial processing request enable line 22 and makes AND circuit 15 conductive. Counter 12 performs always the count operation, and starts the count operation again from 0 after the maximum value is counted. In case of overflow, the artificial processing request is issued and is reported to the microprogram of the common control part through circuit 15, OR circuit 16, and processing request signal line 20. This program reads contents of status register 13 by status information transmission line 23 to discriminate the polarity of various kinds of signal line from the MODEM.
JP54170828A 1979-12-27 1979-12-27 Line monitoring method Expired JPS5941623B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54170828A JPS5941623B2 (en) 1979-12-27 1979-12-27 Line monitoring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54170828A JPS5941623B2 (en) 1979-12-27 1979-12-27 Line monitoring method

Publications (2)

Publication Number Publication Date
JPS5693455A true JPS5693455A (en) 1981-07-29
JPS5941623B2 JPS5941623B2 (en) 1984-10-08

Family

ID=15912076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54170828A Expired JPS5941623B2 (en) 1979-12-27 1979-12-27 Line monitoring method

Country Status (1)

Country Link
JP (1) JPS5941623B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0640392A (en) * 1990-12-31 1994-02-15 Brunswick Corp Latch mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0640392A (en) * 1990-12-31 1994-02-15 Brunswick Corp Latch mechanism

Also Published As

Publication number Publication date
JPS5941623B2 (en) 1984-10-08

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