JPS5414609A - Detection circuit for operation of relay - Google Patents

Detection circuit for operation of relay

Info

Publication number
JPS5414609A
JPS5414609A JP7985877A JP7985877A JPS5414609A JP S5414609 A JPS5414609 A JP S5414609A JP 7985877 A JP7985877 A JP 7985877A JP 7985877 A JP7985877 A JP 7985877A JP S5414609 A JPS5414609 A JP S5414609A
Authority
JP
Japan
Prior art keywords
relay
detection circuit
circuit
information
normality
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
JP7985877A
Other languages
Japanese (ja)
Inventor
Hiroshi Inagaki
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 JP7985877A priority Critical patent/JPS5414609A/en
Publication of JPS5414609A publication Critical patent/JPS5414609A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Relay Circuits (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To confirm the normality of relay per information relay and to make unnecessary the relay drive circuit exclusively used, by adding the operation detection circuit for relays in the information repeating circuit.
JP7985877A 1977-07-06 1977-07-06 Detection circuit for operation of relay Pending JPS5414609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7985877A JPS5414609A (en) 1977-07-06 1977-07-06 Detection circuit for operation of relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7985877A JPS5414609A (en) 1977-07-06 1977-07-06 Detection circuit for operation of relay

Publications (1)

Publication Number Publication Date
JPS5414609A true JPS5414609A (en) 1979-02-03

Family

ID=13701885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7985877A Pending JPS5414609A (en) 1977-07-06 1977-07-06 Detection circuit for operation of relay

Country Status (1)

Country Link
JP (1) JPS5414609A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374525A (en) * 1980-04-28 1983-02-22 Olympus Optical Co., Ltd. Ultrasonic diagnostic apparatus for endoscope
US4466444A (en) * 1981-05-20 1984-08-21 Olympus Optical Co., Ltd. Ultrasonic diagnostic apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374525A (en) * 1980-04-28 1983-02-22 Olympus Optical Co., Ltd. Ultrasonic diagnostic apparatus for endoscope
US4466444A (en) * 1981-05-20 1984-08-21 Olympus Optical Co., Ltd. Ultrasonic diagnostic apparatus

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