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JPS6478056A - Method and device for selecting dte status - Google Patents

Method and device for selecting dte status

Info

Publication number
JPS6478056A
JPS6478056A JP62233703A JP23370387A JPS6478056A JP S6478056 A JPS6478056 A JP S6478056A JP 62233703 A JP62233703 A JP 62233703A JP 23370387 A JP23370387 A JP 23370387A JP S6478056 A JPS6478056 A JP S6478056A
Authority
JP
Japan
Prior art keywords
line
terminal equipment
goes
terminating device
host computer
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
JP62233703A
Other languages
Japanese (ja)
Inventor
Kunio Sato
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 JP62233703A priority Critical patent/JPS6478056A/en
Publication of JPS6478056A publication Critical patent/JPS6478056A/en
Pending legal-status Critical Current

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  • Communication Control (AREA)

Abstract

PURPOSE:To discriminate the not-ready state of a line terminating device or that of a terminal equipment by transmitting the fact that the terminal equipment is set at the not-ready state by setting an R line at 1 and turning OFF an I line. CONSTITUTION:A host computer 6 outputs t=1 to a T line when a state is set at a ready state. The R line, when the line terminating devices 7 and 8 and the line being normal, goes to 1, that is, it goes to r=1, and is added on the terminal equipment 9 from the line terminating device 8. The titled device is constituted in such a way that connection is performed by dot line Y in the terminal equipment 9 when current on the terminal equipment 9 is cut off. Therefore, output is issued to the T line after it goes to r=1 and t=1, and it goes to r=1 via the line terminating device 8, a digital line, and the line terminating device 7, then it is added on the host computer. Also, the C line of the terminal equipment 9 goes to non-potential (since no power source is applied), and the line terminating device 8 detects c=OFF, and similarly it is transmitted to the host computer by setting i=OFF via the digital line and furthermore, the line terminating device 7.
JP62233703A 1987-09-19 1987-09-19 Method and device for selecting dte status Pending JPS6478056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62233703A JPS6478056A (en) 1987-09-19 1987-09-19 Method and device for selecting dte status

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62233703A JPS6478056A (en) 1987-09-19 1987-09-19 Method and device for selecting dte status

Publications (1)

Publication Number Publication Date
JPS6478056A true JPS6478056A (en) 1989-03-23

Family

ID=16959223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62233703A Pending JPS6478056A (en) 1987-09-19 1987-09-19 Method and device for selecting dte status

Country Status (1)

Country Link
JP (1) JPS6478056A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5665983A (en) * 1994-09-08 1997-09-09 Nec Corporation Photocoupler device having light emitting device and photo detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5665983A (en) * 1994-09-08 1997-09-09 Nec Corporation Photocoupler device having light emitting device and photo detector

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