JPS54114906A - Line monitor system - Google Patents

Line monitor system

Info

Publication number
JPS54114906A
JPS54114906A JP2222178A JP2222178A JPS54114906A JP S54114906 A JPS54114906 A JP S54114906A JP 2222178 A JP2222178 A JP 2222178A JP 2222178 A JP2222178 A JP 2222178A JP S54114906 A JPS54114906 A JP S54114906A
Authority
JP
Japan
Prior art keywords
transmission error
circuit
remote terminal
conditional
display bit
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
JP2222178A
Other languages
Japanese (ja)
Other versions
JPS6130476B2 (en
Inventor
Shunichi Naito
Masaaki Ito
Hisao Kono
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 JP2222178A priority Critical patent/JPS54114906A/en
Publication of JPS54114906A publication Critical patent/JPS54114906A/en
Publication of JPS6130476B2 publication Critical patent/JPS6130476B2/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)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To enable to monitor the condition of line simply, by providing the conditional memory having the transmission error display bit, in the time sharing transmission system in cascade connection with the digital line for remote terminal. CONSTITUTION:The interface circuit 2 is connected to the digital line 4 connecting the remote terminal RT and the master station TDSW. The interface circuit 2 consists of the serial parallel conversion circuit 6, buffer register 15, transmission error check circuit 14, conditional memory 5 renewing and storing the contact when the conditional information is transmitted, region Fi outputting ''1'' from the check circuit 14 at error taken place written in as the transmission error display bit, and address counter 10.
JP2222178A 1978-02-28 1978-02-28 Line monitor system Granted JPS54114906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2222178A JPS54114906A (en) 1978-02-28 1978-02-28 Line monitor system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2222178A JPS54114906A (en) 1978-02-28 1978-02-28 Line monitor system

Publications (2)

Publication Number Publication Date
JPS54114906A true JPS54114906A (en) 1979-09-07
JPS6130476B2 JPS6130476B2 (en) 1986-07-14

Family

ID=12076734

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2222178A Granted JPS54114906A (en) 1978-02-28 1978-02-28 Line monitor system

Country Status (1)

Country Link
JP (1) JPS54114906A (en)

Also Published As

Publication number Publication date
JPS6130476B2 (en) 1986-07-14

Similar Documents

Publication Publication Date Title
JPS5668859A (en) Communication system between computer systems
NO901413L (en) DEVICE FOR PROCESSING SIGNAL MESSAGES IN A TELECOMMUNICATION NETWORK WITH ASYNCHRONIC TIME SHARING.
JPS5476034A (en) Bus data transfer system
JPS54114906A (en) Line monitor system
JPS57135500A (en) Data memory protecting circuit
JPS5690341A (en) Buffer switching system
JPS54116147A (en) Failure notice system for terminal system
JPS5324238A (en) Data processing system for display system
JPS57201934A (en) Memory switching system of buffer circuit
GB1302071A (en)
JPS56155464A (en) Computer connector
JPS5630347A (en) Single-speed digital subscriber's line transmission system
JPS5452433A (en) Data stansmitter
JPS5589985A (en) Semiconductor memory unit
JPS5219008A (en) Memory switch system
JPS5588457A (en) Mailbox communication system
JPS57139864A (en) Memory extension system
JPS54114908A (en) Control system for line concentration
JPS5452922A (en) Data preset system
JPS55159692A (en) Intraoffice call connection system for time sharing exchanger remote station
JPS5586237A (en) Bit rate conversion system
JPS55118295A (en) Time sharing exchanger
JPS55158757A (en) Information exchanging system
JPS55141860A (en) Processing system for system restart
JPS5837248U (en) Data rewriting circuit