JPS54142918A - Interruption connection system - Google Patents

Interruption connection system

Info

Publication number
JPS54142918A
JPS54142918A JP4975478A JP4975478A JPS54142918A JP S54142918 A JPS54142918 A JP S54142918A JP 4975478 A JP4975478 A JP 4975478A JP 4975478 A JP4975478 A JP 4975478A JP S54142918 A JPS54142918 A JP S54142918A
Authority
JP
Japan
Prior art keywords
interruption
main frame
trunk
incoming
connection
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
JP4975478A
Other languages
Japanese (ja)
Inventor
Naruhito Toyonaga
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4975478A priority Critical patent/JPS54142918A/en
Publication of JPS54142918A publication Critical patent/JPS54142918A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent occurrence of the division loss for the intrruption circuit by giving an interruption connection from the general incoming trunk in that route of the main frame, the special trunk for interruption, the main frame interruption channel and to the main frame interrupted channel and thus giving an interruption connection from all incoming trunks.
CONSTITUTION: An incoming is given to general incoming trunk 6 from the operator, and an interruption connection is requested from the operator via the line signal with the called subscriber being under the busy state. In that case, an interruption connection is given from trunk 6 in that route of the main frame 3, special trunk 7 for interruption, the main frame interruption channel, the main frame interrupted channel and to the called subscriber. Thus, the interruption connection is given from all incoming trunks to prevent occurrence of the division loss for the interruption circuit.
COPYRIGHT: (C)1979,JPO&Japio
JP4975478A 1978-04-28 1978-04-28 Interruption connection system Pending JPS54142918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4975478A JPS54142918A (en) 1978-04-28 1978-04-28 Interruption connection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4975478A JPS54142918A (en) 1978-04-28 1978-04-28 Interruption connection system

Publications (1)

Publication Number Publication Date
JPS54142918A true JPS54142918A (en) 1979-11-07

Family

ID=12839961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4975478A Pending JPS54142918A (en) 1978-04-28 1978-04-28 Interruption connection system

Country Status (1)

Country Link
JP (1) JPS54142918A (en)

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