JPS6398246A - Line control system for communication equipment - Google Patents

Line control system for communication equipment

Info

Publication number
JPS6398246A
JPS6398246A JP61243241A JP24324186A JPS6398246A JP S6398246 A JPS6398246 A JP S6398246A JP 61243241 A JP61243241 A JP 61243241A JP 24324186 A JP24324186 A JP 24324186A JP S6398246 A JPS6398246 A JP S6398246A
Authority
JP
Japan
Prior art keywords
line
equipment
signal detecting
detecting means
control system
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
JP61243241A
Other languages
Japanese (ja)
Inventor
Hitoshi Kubota
Yoshiki Yajima
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.)
Azbil Corp
Original Assignee
Azbil Corp
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 Azbil Corp filed Critical Azbil Corp
Priority to JP61243241A priority Critical patent/JPS6398246A/en
Publication of JPS6398246A publication Critical patent/JPS6398246A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To surely and rapidly connect a communication line, by connecting a display means to a signal detecting means which detects the level of a transmission line or a reception line in one equipment, forming a signal detection circuit by the above connection, and switching the circuit with the communication line.
CONSTITUTION: A circuit switching means 6 is connected to a side 1 when regular communication is performed, however, it is connected to a side 2 in the line retrieval. By the above connection, the line of a third pin of a connector 103 is connected to the signal detecting means 3, that is, a signal detecting receiver IC. At this time, when the third pin of the connector is the transmission data line of an opposite equipment, that is, a second equipment 102, the output of the signal detecting means 3 drives a display means 5 passing through an inverter 4, in other words, it lights an LLED. Then, it follows that the reception line of a first equipment 101 is connected to the reception line of the second equipment 102, therefore, such erroneous connection is returned.
COPYRIGHT: (C)1988,JPO&Japio
JP61243241A 1986-10-15 1986-10-15 Line control system for communication equipment Pending JPS6398246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61243241A JPS6398246A (en) 1986-10-15 1986-10-15 Line control system for communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61243241A JPS6398246A (en) 1986-10-15 1986-10-15 Line control system for communication equipment

Publications (1)

Publication Number Publication Date
JPS6398246A true JPS6398246A (en) 1988-04-28

Family

ID=17100940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61243241A Pending JPS6398246A (en) 1986-10-15 1986-10-15 Line control system for communication equipment

Country Status (1)

Country Link
JP (1) JPS6398246A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02301251A (en) * 1989-05-15 1990-12-13 Iwatsu Electric Co Ltd Interface discrimination circuit
JPH0412557U (en) * 1990-05-16 1992-01-31

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02301251A (en) * 1989-05-15 1990-12-13 Iwatsu Electric Co Ltd Interface discrimination circuit
JPH0412557U (en) * 1990-05-16 1992-01-31

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