JPS6328549B2 - - Google Patents

Info

Publication number
JPS6328549B2
JPS6328549B2 JP58215018A JP21501883A JPS6328549B2 JP S6328549 B2 JPS6328549 B2 JP S6328549B2 JP 58215018 A JP58215018 A JP 58215018A JP 21501883 A JP21501883 A JP 21501883A JP S6328549 B2 JPS6328549 B2 JP S6328549B2
Authority
JP
Japan
Prior art keywords
voltage
analog switch
terminal device
state
telephone line
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
Application number
JP58215018A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60107967A (ja
Inventor
Juichi Morita
Kyoichi Nakakawara
Juzo Tsuruta
Fukue Ogawa
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.)
Toshiba Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp, Nippon Telegraph and Telephone Corp filed Critical Toshiba Corp
Priority to JP21501883A priority Critical patent/JPS60107967A/ja
Publication of JPS60107967A publication Critical patent/JPS60107967A/ja
Publication of JPS6328549B2 publication Critical patent/JPS6328549B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H04M3/301—Circuit arrangements at the subscriber's side of the line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Electronic Switches (AREA)
JP21501883A 1983-11-17 1983-11-17 アナログスイッチ回路 Granted JPS60107967A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21501883A JPS60107967A (ja) 1983-11-17 1983-11-17 アナログスイッチ回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21501883A JPS60107967A (ja) 1983-11-17 1983-11-17 アナログスイッチ回路

Publications (2)

Publication Number Publication Date
JPS60107967A JPS60107967A (ja) 1985-06-13
JPS6328549B2 true JPS6328549B2 (enrdf_load_stackoverflow) 1988-06-08

Family

ID=16665362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21501883A Granted JPS60107967A (ja) 1983-11-17 1983-11-17 アナログスイッチ回路

Country Status (1)

Country Link
JP (1) JPS60107967A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009253417A (ja) * 2008-04-02 2009-10-29 Nakayo Telecommun Inc 内線アナログ電話システム

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0654886B2 (ja) * 1985-11-08 1994-07-20 日本電信電話株式会社 線路特性測定方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55135461A (en) * 1979-04-09 1980-10-22 Nippon Telegr & Teleph Corp <Ntt> Starting system for terminal unit
JPS5797762A (en) * 1980-12-11 1982-06-17 Nippon Telegr & Teleph Corp <Ntt> Analogue switch circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009253417A (ja) * 2008-04-02 2009-10-29 Nakayo Telecommun Inc 内線アナログ電話システム

Also Published As

Publication number Publication date
JPS60107967A (ja) 1985-06-13

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