JPS5685956A - Communication equipment - Google Patents

Communication equipment

Info

Publication number
JPS5685956A
JPS5685956A JP16317579A JP16317579A JPS5685956A JP S5685956 A JPS5685956 A JP S5685956A JP 16317579 A JP16317579 A JP 16317579A JP 16317579 A JP16317579 A JP 16317579A JP S5685956 A JPS5685956 A JP S5685956A
Authority
JP
Japan
Prior art keywords
loop test
station
communication equipment
fault
result
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
JP16317579A
Other languages
Japanese (ja)
Inventor
Shozo Kudo
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP16317579A priority Critical patent/JPS5685956A/en
Publication of JPS5685956A publication Critical patent/JPS5685956A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
    • H04L1/243—Testing correct operation by comparing a transmitted test signal with a locally generated replica at the transmitter, using a loop-back

Landscapes

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

Abstract

PURPOSE:To shorten the recovery time by automatically executing the maintenance such as a fault diagnosis, etc. by the remote control, and informing the diagnostic result to the other station, in the communication equipment such as a facsimile, etc. CONSTITUTION:The 6 loops are formed by the transmission system and the receiving system of the facsimile communication equipment, the loop test is executed in the direction from the receiving system to the transmission system, the loop test of each block is executed in accordance with the loop test instruction from the other station by the control circuit 30, whether its operation is normal or not is decided, and it is output. Its loop test result is transmitted to the other station. The result of the loop test is decided freely by the other station. In case when a fault has occurred in the equipment, the circuit block in which a fault has occurred can be detected.
JP16317579A 1979-12-15 1979-12-15 Communication equipment Pending JPS5685956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16317579A JPS5685956A (en) 1979-12-15 1979-12-15 Communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16317579A JPS5685956A (en) 1979-12-15 1979-12-15 Communication equipment

Publications (1)

Publication Number Publication Date
JPS5685956A true JPS5685956A (en) 1981-07-13

Family

ID=15768662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16317579A Pending JPS5685956A (en) 1979-12-15 1979-12-15 Communication equipment

Country Status (1)

Country Link
JP (1) JPS5685956A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922475A (en) * 1982-07-29 1984-02-04 Hitachi Ltd Remote maintenance system of facsimile device
JPS60120652A (en) * 1983-12-05 1985-06-28 Toshiba Corp State display device of device having print means
JPS61284158A (en) * 1985-06-10 1986-12-15 Brother Ind Ltd Facsimile equipment with maintenance and management function
JPS6243958A (en) * 1985-08-21 1987-02-25 Nec Corp Facsimile equipment having diagnostic function
JPS6245266A (en) * 1985-08-22 1987-02-27 Matsushita Graphic Commun Syst Inc Method for remote fault diagnosis and fault repair of communication terminal equipment
JPS62161838A (en) * 1986-01-10 1987-07-17 Hitachi Chem Co Ltd Production of prepreg for printed circuit board
JPS62117869U (en) * 1986-01-13 1987-07-27
JPH02153655A (en) * 1988-12-05 1990-06-13 Yamaha Corp Maintenance testing method
US5737317A (en) * 1988-12-05 1998-04-07 Yamaha Corporation Communication system testing method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922475A (en) * 1982-07-29 1984-02-04 Hitachi Ltd Remote maintenance system of facsimile device
JPH0459825B2 (en) * 1982-07-29 1992-09-24 Hitachi Ltd
JPS60120652A (en) * 1983-12-05 1985-06-28 Toshiba Corp State display device of device having print means
JPS61284158A (en) * 1985-06-10 1986-12-15 Brother Ind Ltd Facsimile equipment with maintenance and management function
JPS6243958A (en) * 1985-08-21 1987-02-25 Nec Corp Facsimile equipment having diagnostic function
JPS6245266A (en) * 1985-08-22 1987-02-27 Matsushita Graphic Commun Syst Inc Method for remote fault diagnosis and fault repair of communication terminal equipment
JPS62161838A (en) * 1986-01-10 1987-07-17 Hitachi Chem Co Ltd Production of prepreg for printed circuit board
JPS62117869U (en) * 1986-01-13 1987-07-27
JPH0528846Y2 (en) * 1986-01-13 1993-07-23
JPH02153655A (en) * 1988-12-05 1990-06-13 Yamaha Corp Maintenance testing method
US5737317A (en) * 1988-12-05 1998-04-07 Yamaha Corporation Communication system testing method

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