JPS5472606A - Day-night switching control system for b board - Google Patents

Day-night switching control system for b board

Info

Publication number
JPS5472606A
JPS5472606A JP14031877A JP14031877A JPS5472606A JP S5472606 A JPS5472606 A JP S5472606A JP 14031877 A JP14031877 A JP 14031877A JP 14031877 A JP14031877 A JP 14031877A JP S5472606 A JPS5472606 A JP S5472606A
Authority
JP
Japan
Prior art keywords
board
night
day
natt
control system
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
JP14031877A
Other languages
Japanese (ja)
Inventor
Yoshifumi Kubo
Kiyobumi Hayashi
Tsugio Umemiya
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
Original Assignee
Fujitsu 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 filed Critical Fujitsu Ltd
Priority to JP14031877A priority Critical patent/JPS5472606A/en
Publication of JPS5472606A publication Critical patent/JPS5472606A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To enable to use a program for both as day and night by switching the night control circuit of B board to connect it to the night transfer board. CONSTITUTION:By exchanging switching unit NC in the B board ATTo at night, transfer board NATT is connected with the switchboard and control circuits CC1 and CC2 of night transfer board NATT is connected with the built-in circuit of B board ATT. Therefore, when the B board is called by the same program as the one in the daytime at the time of incoming from the main wire, signals are sent only to board NATT.
JP14031877A 1977-11-22 1977-11-22 Day-night switching control system for b board Pending JPS5472606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14031877A JPS5472606A (en) 1977-11-22 1977-11-22 Day-night switching control system for b board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14031877A JPS5472606A (en) 1977-11-22 1977-11-22 Day-night switching control system for b board

Publications (1)

Publication Number Publication Date
JPS5472606A true JPS5472606A (en) 1979-06-11

Family

ID=15266011

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14031877A Pending JPS5472606A (en) 1977-11-22 1977-11-22 Day-night switching control system for b board

Country Status (1)

Country Link
JP (1) JPS5472606A (en)

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