JPS5443403A - Main wire outgoing control system - Google Patents

Main wire outgoing control system

Info

Publication number
JPS5443403A
JPS5443403A JP10888377A JP10888377A JPS5443403A JP S5443403 A JPS5443403 A JP S5443403A JP 10888377 A JP10888377 A JP 10888377A JP 10888377 A JP10888377 A JP 10888377A JP S5443403 A JPS5443403 A JP S5443403A
Authority
JP
Japan
Prior art keywords
main wire
control system
wire outgoing
outgoing control
trunk
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
JP10888377A
Other languages
Japanese (ja)
Other versions
JPS6027474B2 (en
Inventor
Shigeki Hashimoto
Akio Sato
Jiro Sekiguchi
Moritaka Ippongi
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 JP10888377A priority Critical patent/JPS6027474B2/en
Publication of JPS5443403A publication Critical patent/JPS5443403A/en
Publication of JPS6027474B2 publication Critical patent/JPS6027474B2/en
Expired 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 prevent the wrong trunk call caused by the hooking operation by opening the DC-type coupling of the main wire outgoing trunk for a fixed time at PBX.
JP10888377A 1977-09-12 1977-09-12 Local line transmission control system Expired JPS6027474B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10888377A JPS6027474B2 (en) 1977-09-12 1977-09-12 Local line transmission control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10888377A JPS6027474B2 (en) 1977-09-12 1977-09-12 Local line transmission control system

Publications (2)

Publication Number Publication Date
JPS5443403A true JPS5443403A (en) 1979-04-06
JPS6027474B2 JPS6027474B2 (en) 1985-06-28

Family

ID=14496000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10888377A Expired JPS6027474B2 (en) 1977-09-12 1977-09-12 Local line transmission control system

Country Status (1)

Country Link
JP (1) JPS6027474B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0347492B1 (en) * 1981-12-18 1991-07-19 Toyo Boseki

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0347492B1 (en) * 1981-12-18 1991-07-19 Toyo Boseki

Also Published As

Publication number Publication date
JPS6027474B2 (en) 1985-06-28

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