JPS56107685A - Electric power supply system of electronic exchange - Google Patents

Electric power supply system of electronic exchange

Info

Publication number
JPS56107685A
JPS56107685A JP1034280A JP1034280A JPS56107685A JP S56107685 A JPS56107685 A JP S56107685A JP 1034280 A JP1034280 A JP 1034280A JP 1034280 A JP1034280 A JP 1034280A JP S56107685 A JPS56107685 A JP S56107685A
Authority
JP
Japan
Prior art keywords
electric power
equipment
power supply
stcctl
unit
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
JP1034280A
Other languages
Japanese (ja)
Inventor
Ryuzo Yamamoto
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1034280A priority Critical patent/JPS56107685A/en
Publication of JPS56107685A publication Critical patent/JPS56107685A/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
    • H04Q1/28—Current-supply circuits or arrangements for selection equipment at exchanges

Abstract

PURPOSE:To prevent power consumption and heat generation by supplying an electric power source in order only to an equipment required for the exchange processing operation of an electronic exchange when calling has occurred and stopping the electric power supply to the equipment other than which is necessary, when the exchange processing operation is completed. CONSTITUTION:When calling has been detected, the central processing equipment CC starts to supply the electric power source to the scanning control unit STCCTL through the electric power supply expansion circuit DEC, and makes the switch control unit STCCTL rise. The equipment CC transfers the information required for setting a channel, to the unit STCCTL, and the unit STCCTL sets the channel of the extension subscriber's telephone set TELA and the signal register trunk TRT in accordance with said information. The equipment CC stops the electric power supply to the unit STCCTL through the circuit DEC by the status information, when said setting has been completed. The equipment discriminates that calling has been completed, operates the electric power supply cutting relay POWRL, and cuts off by itself the electric power supply to the equipment CC and the main memory MM.
JP1034280A 1980-01-31 1980-01-31 Electric power supply system of electronic exchange Pending JPS56107685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1034280A JPS56107685A (en) 1980-01-31 1980-01-31 Electric power supply system of electronic exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1034280A JPS56107685A (en) 1980-01-31 1980-01-31 Electric power supply system of electronic exchange

Publications (1)

Publication Number Publication Date
JPS56107685A true JPS56107685A (en) 1981-08-26

Family

ID=11747506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1034280A Pending JPS56107685A (en) 1980-01-31 1980-01-31 Electric power supply system of electronic exchange

Country Status (1)

Country Link
JP (1) JPS56107685A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114988A (en) * 1982-12-21 1984-07-03 Fujitsu Ltd Power saving service trunk
FR2630280A1 (en) * 1988-04-15 1989-10-20 France Etat ENERGY CONSUMPTION REDUCING DEVICE FOR CYCLICALLY OPERATING EQUIPMENT SUCH AS A TIME SWITCH

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114988A (en) * 1982-12-21 1984-07-03 Fujitsu Ltd Power saving service trunk
JPH0249597B2 (en) * 1982-12-21 1990-10-30 Fujitsu Ltd
FR2630280A1 (en) * 1988-04-15 1989-10-20 France Etat ENERGY CONSUMPTION REDUCING DEVICE FOR CYCLICALLY OPERATING EQUIPMENT SUCH AS A TIME SWITCH

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