JPH0224063B2 - - Google Patents

Info

Publication number
JPH0224063B2
JPH0224063B2 JP1557682A JP1557682A JPH0224063B2 JP H0224063 B2 JPH0224063 B2 JP H0224063B2 JP 1557682 A JP1557682 A JP 1557682A JP 1557682 A JP1557682 A JP 1557682A JP H0224063 B2 JPH0224063 B2 JP H0224063B2
Authority
JP
Japan
Prior art keywords
circuit
power supply
network control
control device
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.)
Expired - Lifetime
Application number
JP1557682A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58134569A (ja
Inventor
Kazuo Kanai
Kuniaki Okada
Tadashi Fujisawa
Masao Nito
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.)
Fuji Electric Co Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fuji Electric Co Ltd
Nippon Telegraph and Telephone Corp
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 Fuji Electric Co Ltd, Nippon Telegraph and Telephone Corp filed Critical Fuji Electric Co Ltd
Priority to JP57015576A priority Critical patent/JPS58134569A/ja
Publication of JPS58134569A publication Critical patent/JPS58134569A/ja
Publication of JPH0224063B2 publication Critical patent/JPH0224063B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP57015576A 1982-02-04 1982-02-04 網制御装置の電源供給方式 Granted JPS58134569A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57015576A JPS58134569A (ja) 1982-02-04 1982-02-04 網制御装置の電源供給方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57015576A JPS58134569A (ja) 1982-02-04 1982-02-04 網制御装置の電源供給方式

Publications (2)

Publication Number Publication Date
JPS58134569A JPS58134569A (ja) 1983-08-10
JPH0224063B2 true JPH0224063B2 (sv) 1990-05-28

Family

ID=11892552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57015576A Granted JPS58134569A (ja) 1982-02-04 1982-02-04 網制御装置の電源供給方式

Country Status (1)

Country Link
JP (1) JPS58134569A (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4905096B2 (ja) * 2006-12-06 2012-03-28 三菱電機株式会社 エレベータの戸装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119570A (en) * 1980-02-26 1981-09-19 Iwatsu Electric Co Ltd Emergency communication system
JPS57168567A (en) * 1981-04-10 1982-10-16 Hitachi Ltd Electric power feeding system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119570A (en) * 1980-02-26 1981-09-19 Iwatsu Electric Co Ltd Emergency communication system
JPS57168567A (en) * 1981-04-10 1982-10-16 Hitachi Ltd Electric power feeding system

Also Published As

Publication number Publication date
JPS58134569A (ja) 1983-08-10

Similar Documents

Publication Publication Date Title
US4392024A (en) Electronic key telephone set circuit for permitting dialing during failure of commercial power supplied to the set
US4150260A (en) Subscriber's circuit for four-wire-system local switch
US4081619A (en) Switching arrangement for telecommunication subscriber stations using key-operated selection units
JPH0224063B2 (sv)
US4099031A (en) Method and apparatus for automatically identifying an individual calling party on a multiparty telephone line
US3941941A (en) Relayless switching circuit for application of ringing signals
US4292476A (en) Speech channel switching networks suitable for use in combination with electronic key telephone sets
US4660219A (en) Extension ringing arrangement key telephone system
US3967076A (en) Call denial circuit for key telephone systems
US3936608A (en) Multimetering for telephone switching systems
JPH05236096A (ja) 打合電話回路
US4223186A (en) Circuit arrangement for line-supplied subscriber stations having dial devices
JP2723569B2 (ja) 電話回線用集線機
JPS646618Y2 (sv)
US4017692A (en) Telephone call-diverter system
US4445004A (en) Key telephone line circuit with improved hold circuit
JP2918966B2 (ja) 有線放送呼出方式
JPH02907B2 (sv)
JP2000050321A (ja) ２線式加入者回路の障害検出回路
JPH0583752A (ja) ダイヤルパルス送出機能付き電子化チヨーク回路
JPH0550184B2 (sv)
JPS6259500B2 (sv)
JPS6314523Y2 (sv)
JPS6028196B2 (ja) 局線回路
JPH0431217B2 (sv)