JPS56122261A - Function test system for tripartite service trunk - Google Patents

Function test system for tripartite service trunk

Info

Publication number
JPS56122261A
JPS56122261A JP2595880A JP2595880A JPS56122261A JP S56122261 A JPS56122261 A JP S56122261A JP 2595880 A JP2595880 A JP 2595880A JP 2595880 A JP2595880 A JP 2595880A JP S56122261 A JPS56122261 A JP S56122261A
Authority
JP
Japan
Prior art keywords
signal
inputs
multifrequency
state
function 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
JP2595880A
Other languages
Japanese (ja)
Other versions
JPS606144B2 (en
Inventor
Hatsuo Murata
Keiichi Miyahara
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 JP2595880A priority Critical patent/JPS606144B2/en
Publication of JPS56122261A publication Critical patent/JPS56122261A/en
Publication of JPS606144B2 publication Critical patent/JPS606144B2/en
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To perform the function test of the tripertite service trunk automatically in a short time, by providing apertures for test in multifrequency oscillators and the multifrequency receiver for interstation signal. CONSTITUTION:The aperture by which detection signals for all receivable frequencies can be displayed individually is given to multifrequency receiver 4 for interstation signal, and multifrequency oscillators 1-3 for interstation signal are connected through channel switch network 5 so that receivable frequencies different from one another can be input to inputs 7-9 of tripartite service trunk 6. The state where no signal is applied to inputs 7-9, the state where the signal is applied to one of inputs 7-9, and the state where signals different from each other are applied to two of inputs 7-9 are formed, and receiving frequencies for respective states are confirmed to decide whether trunk 6 is correct or not.
JP2595880A 1980-02-29 1980-02-29 Three-way call trunk function test method Expired JPS606144B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2595880A JPS606144B2 (en) 1980-02-29 1980-02-29 Three-way call trunk function test method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2595880A JPS606144B2 (en) 1980-02-29 1980-02-29 Three-way call trunk function test method

Publications (2)

Publication Number Publication Date
JPS56122261A true JPS56122261A (en) 1981-09-25
JPS606144B2 JPS606144B2 (en) 1985-02-15

Family

ID=12180249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2595880A Expired JPS606144B2 (en) 1980-02-29 1980-02-29 Three-way call trunk function test method

Country Status (1)

Country Link
JP (1) JPS606144B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169263A (en) * 1983-03-16 1984-09-25 Nec Corp Confirming system for connection of line
JPS60109959A (en) * 1983-11-19 1985-06-15 Fujitsu Ltd Test method of three-party talking device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169263A (en) * 1983-03-16 1984-09-25 Nec Corp Confirming system for connection of line
JPS60109959A (en) * 1983-11-19 1985-06-15 Fujitsu Ltd Test method of three-party talking device
JPH0326588B2 (en) * 1983-11-19 1991-04-11 Fujitsu Ltd

Also Published As

Publication number Publication date
JPS606144B2 (en) 1985-02-15

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