JPS55105466A - Exchange system - Google Patents

Exchange system

Info

Publication number
JPS55105466A
JPS55105466A JP1296379A JP1296379A JPS55105466A JP S55105466 A JPS55105466 A JP S55105466A JP 1296379 A JP1296379 A JP 1296379A JP 1296379 A JP1296379 A JP 1296379A JP S55105466 A JPS55105466 A JP S55105466A
Authority
JP
Japan
Prior art keywords
unit
control
exchange
line
circuit
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
JP1296379A
Other languages
English (en)
Inventor
Akihiro Kitamura
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 JP1296379A priority Critical patent/JPS55105466A/ja
Publication of JPS55105466A publication Critical patent/JPS55105466A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/14—Distribution frames
    • H04Q1/145—Distribution frames with switches arranged in a matrix configuration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Structure Of Telephone Exchanges (AREA)
JP1296379A 1979-02-07 1979-02-07 Exchange system Pending JPS55105466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1296379A JPS55105466A (en) 1979-02-07 1979-02-07 Exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1296379A JPS55105466A (en) 1979-02-07 1979-02-07 Exchange system

Publications (1)

Publication Number Publication Date
JPS55105466A true JPS55105466A (en) 1980-08-13

Family

ID=11819901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1296379A Pending JPS55105466A (en) 1979-02-07 1979-02-07 Exchange system

Country Status (1)

Country Link
JP (1) JPS55105466A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5840960A (ja) * 1981-09-04 1983-03-10 Nec Corp デジタル回線収容方式
JPS6052191A (ja) * 1983-09-01 1985-03-25 Oki Electric Ind Co Ltd 主配線盤の小群化方式
JP5454729B1 (ja) * 2013-08-05 2014-03-26 東洋インキＳｃホールディングス株式会社 ハロゲン化キナクリドンの製造方法
US10155867B2 (en) 2013-08-05 2018-12-18 Toyo Ink Sc Holdings Co., Ltd. Method for producing halogenated organic pigment, halogenated organic pigment obtained by the production method, and colored composition comprising the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5840960A (ja) * 1981-09-04 1983-03-10 Nec Corp デジタル回線収容方式
JPH0214826B2 (ja) * 1981-09-04 1990-04-10 Nippon Electric Co
JPS6052191A (ja) * 1983-09-01 1985-03-25 Oki Electric Ind Co Ltd 主配線盤の小群化方式
JP5454729B1 (ja) * 2013-08-05 2014-03-26 東洋インキＳｃホールディングス株式会社 ハロゲン化キナクリドンの製造方法
US10155867B2 (en) 2013-08-05 2018-12-18 Toyo Ink Sc Holdings Co., Ltd. Method for producing halogenated organic pigment, halogenated organic pigment obtained by the production method, and colored composition comprising the same

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