JPS5448421A - Inspection system for relay group driving unit - Google Patents

Inspection system for relay group driving unit

Info

Publication number
JPS5448421A
JPS5448421A JP8159077A JP8159077A JPS5448421A JP S5448421 A JPS5448421 A JP S5448421A JP 8159077 A JP8159077 A JP 8159077A JP 8159077 A JP8159077 A JP 8159077A JP S5448421 A JPS5448421 A JP S5448421A
Authority
JP
Japan
Prior art keywords
relay
column
drive circuit
hold
voltage
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.)
Granted
Application number
JP8159077A
Other languages
English (en)
Other versions
JPS5761234B2 (ja
Inventor
Takao Ueno
Tadashi Shibuya
Ayafumi Ogi
Minoru Kaneko
Yasushi Miyake
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
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric Co 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, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP8159077A priority Critical patent/JPS5448421A/ja
Publication of JPS5448421A publication Critical patent/JPS5448421A/ja
Publication of JPS5761234B2 publication Critical patent/JPS5761234B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
JP8159077A 1977-07-08 1977-07-08 Inspection system for relay group driving unit Granted JPS5448421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8159077A JPS5448421A (en) 1977-07-08 1977-07-08 Inspection system for relay group driving unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8159077A JPS5448421A (en) 1977-07-08 1977-07-08 Inspection system for relay group driving unit

Publications (2)

Publication Number Publication Date
JPS5448421A true JPS5448421A (en) 1979-04-17
JPS5761234B2 JPS5761234B2 (ja) 1982-12-23

Family

ID=13750522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8159077A Granted JPS5448421A (en) 1977-07-08 1977-07-08 Inspection system for relay group driving unit

Country Status (1)

Country Link
JP (1) JPS5448421A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172934U (ja) * 1981-04-28 1982-10-30
JPS57190136U (ja) * 1981-05-28 1982-12-02

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4978411A (ja) * 1972-11-30 1974-07-29
JPS4992912A (ja) * 1972-12-29 1974-09-04

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4978411A (ja) * 1972-11-30 1974-07-29
JPS4992912A (ja) * 1972-12-29 1974-09-04

Also Published As

Publication number Publication date
JPS5761234B2 (ja) 1982-12-23

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