JPH0213520B2 - - Google Patents

Info

Publication number
JPH0213520B2
JPH0213520B2 JP55099387A JP9938780A JPH0213520B2 JP H0213520 B2 JPH0213520 B2 JP H0213520B2 JP 55099387 A JP55099387 A JP 55099387A JP 9938780 A JP9938780 A JP 9938780A JP H0213520 B2 JPH0213520 B2 JP H0213520B2
Authority
JP
Japan
Prior art keywords
telephone
circuit
power
pair
cables
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.)
Expired - Lifetime
Application number
JP55099387A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5725767A (en
Inventor
Koichi Sekiguchi
Hideaki Naganami
Kazuyuki Yamamoto
Teruyuki Kubo
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.)
Nippon Telegraph and Telephone Corp
Iwasaki Tsushinki KK
Original Assignee
Nippon Telegraph and Telephone Corp
Iwasaki Tsushinki KK
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 Nippon Telegraph and Telephone Corp, Iwasaki Tsushinki KK filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9938780A priority Critical patent/JPS5725767A/ja
Publication of JPS5725767A publication Critical patent/JPS5725767A/ja
Publication of JPH0213520B2 publication Critical patent/JPH0213520B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP9938780A 1980-07-22 1980-07-22 Telephone device Granted JPS5725767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9938780A JPS5725767A (en) 1980-07-22 1980-07-22 Telephone device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9938780A JPS5725767A (en) 1980-07-22 1980-07-22 Telephone device

Publications (2)

Publication Number Publication Date
JPS5725767A JPS5725767A (en) 1982-02-10
JPH0213520B2 true JPH0213520B2 (enrdf_load_stackoverflow) 1990-04-04

Family

ID=14246089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9938780A Granted JPS5725767A (en) 1980-07-22 1980-07-22 Telephone device

Country Status (1)

Country Link
JP (1) JPS5725767A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2746929B2 (ja) * 1988-08-24 1998-05-06 キヤノン株式会社 通信システム
JP6079718B2 (ja) * 2014-07-31 2017-02-15 中国電力株式会社 停電時発電所内通信システムおよび停電時発電所内通信方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141104A (en) * 1976-05-19 1977-11-25 Iwatsu Electric Co Ltd Private talk system for telephone unit
JPS53116710A (en) * 1977-03-22 1978-10-12 Tamura Electric Works Ltd Button telephone set

Also Published As

Publication number Publication date
JPS5725767A (en) 1982-02-10

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