JPS5617555A - Test method of off-hook detector - Google Patents

Test method of off-hook detector

Info

Publication number
JPS5617555A
JPS5617555A JP9341279A JP9341279A JPS5617555A JP S5617555 A JPS5617555 A JP S5617555A JP 9341279 A JP9341279 A JP 9341279A JP 9341279 A JP9341279 A JP 9341279A JP S5617555 A JPS5617555 A JP S5617555A
Authority
JP
Japan
Prior art keywords
circuit
voltage
hook detector
current
test
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
JP9341279A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6159584B2 (cg-RX-API-DMAC7.html
Inventor
Junichi Takahashi
Hirohisa Tsuda
Kyoichi Nakakawara
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
NTT Inc
Original Assignee
Toshiba Corp
Nippon Telegraph and Telephone Corp
Tokyo Shibaura 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 Toshiba Corp, Nippon Telegraph and Telephone Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9341279A priority Critical patent/JPS5617555A/ja
Publication of JPS5617555A publication Critical patent/JPS5617555A/ja
Publication of JPS6159584B2 publication Critical patent/JPS6159584B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
JP9341279A 1979-07-23 1979-07-23 Test method of off-hook detector Granted JPS5617555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9341279A JPS5617555A (en) 1979-07-23 1979-07-23 Test method of off-hook detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9341279A JPS5617555A (en) 1979-07-23 1979-07-23 Test method of off-hook detector

Publications (2)

Publication Number Publication Date
JPS5617555A true JPS5617555A (en) 1981-02-19
JPS6159584B2 JPS6159584B2 (cg-RX-API-DMAC7.html) 1986-12-17

Family

ID=14081577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9341279A Granted JPS5617555A (en) 1979-07-23 1979-07-23 Test method of off-hook detector

Country Status (1)

Country Link
JP (1) JPS5617555A (cg-RX-API-DMAC7.html)

Also Published As

Publication number Publication date
JPS6159584B2 (cg-RX-API-DMAC7.html) 1986-12-17

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