JPS5412607A - Interruption connecting system - Google Patents

Interruption connecting system

Info

Publication number
JPS5412607A
JPS5412607A JP7720477A JP7720477A JPS5412607A JP S5412607 A JPS5412607 A JP S5412607A JP 7720477 A JP7720477 A JP 7720477A JP 7720477 A JP7720477 A JP 7720477A JP S5412607 A JPS5412607 A JP S5412607A
Authority
JP
Japan
Prior art keywords
interruption
circuit
adding device
connecting system
call current
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
JP7720477A
Other languages
Japanese (ja)
Inventor
Morihiro 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.)
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 JP7720477A priority Critical patent/JPS5412607A/en
Publication of JPS5412607A publication Critical patent/JPS5412607A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify the constitution of the interruption control circuit, by carrying out the switching of the call current only at the interruption connecting time via the interruption adding device featuring the call current supply stopping function, connecting between the incoming trunk and the subscriber only for the time during which the adding device is needed and then uniting the general circuit and the interruption connecting circuit.
COPYRIGHT: (C)1979,JPO&Japio
JP7720477A 1977-06-30 1977-06-30 Interruption connecting system Pending JPS5412607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7720477A JPS5412607A (en) 1977-06-30 1977-06-30 Interruption connecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7720477A JPS5412607A (en) 1977-06-30 1977-06-30 Interruption connecting system

Publications (1)

Publication Number Publication Date
JPS5412607A true JPS5412607A (en) 1979-01-30

Family

ID=13627287

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7720477A Pending JPS5412607A (en) 1977-06-30 1977-06-30 Interruption connecting system

Country Status (1)

Country Link
JP (1) JPS5412607A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115363U (en) * 1983-01-24 1984-08-03 住友電気工業株式会社 Electrostatic shield type magnetic field sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115363U (en) * 1983-01-24 1984-08-03 住友電気工業株式会社 Electrostatic shield type magnetic field sensor

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