JPS5538723A - Trunk connection test system - Google Patents

Trunk connection test system

Info

Publication number
JPS5538723A
JPS5538723A JP11100178A JP11100178A JPS5538723A JP S5538723 A JPS5538723 A JP S5538723A JP 11100178 A JP11100178 A JP 11100178A JP 11100178 A JP11100178 A JP 11100178A JP S5538723 A JPS5538723 A JP S5538723A
Authority
JP
Japan
Prior art keywords
tone
trunks
test
connection test
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.)
Pending
Application number
JP11100178A
Other languages
Japanese (ja)
Inventor
Keiji Yoshino
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 JP11100178A priority Critical patent/JPS5538723A/en
Publication of JPS5538723A publication Critical patent/JPS5538723A/en
Pending 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 realize the connection test for various types of trunks via a single tone receiver by transmitting the single test tone from the tested trunks in common. CONSTITUTION:Test tone D18 is connected in common to three types of trunks 12-14, for example, which supply tones A-C. In the case of the test for trunk A12, switch circuit 20 is operated to supply tone D18 to the communication line instead of original tone A, and trunk A12 is connected to tone receiver D10 via network 11 to read out the output via the scanner or the like. In such way, the connection test is carried out. For other trunks, the switching is given in the same way to tone D18 via switch circuits 21 and 22. As a result, the connection test becomes possible for vairous types of trunks with a reduced amount of the hardware.
JP11100178A 1978-09-08 1978-09-08 Trunk connection test system Pending JPS5538723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11100178A JPS5538723A (en) 1978-09-08 1978-09-08 Trunk connection test system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11100178A JPS5538723A (en) 1978-09-08 1978-09-08 Trunk connection test system

Publications (1)

Publication Number Publication Date
JPS5538723A true JPS5538723A (en) 1980-03-18

Family

ID=14549875

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11100178A Pending JPS5538723A (en) 1978-09-08 1978-09-08 Trunk connection test system

Country Status (1)

Country Link
JP (1) JPS5538723A (en)

Cited By (1)

* 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

Cited By (1)

* 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

Similar Documents

Publication Publication Date Title
ES474140A1 (en) Communication system using intelligent network processor
JPS5538723A (en) Trunk connection test system
GB1130557A (en) Improvements in or relating to telecommunications exchange systems
GB2110505A (en) Data communications network
ES2098366T3 (en) SWITCHING DEVICE.
JPS57212856A (en) Terminal adaptor system
JPS57104354A (en) Button telephone set
JPS56110378A (en) Test system for conference service device
JPS5513541A (en) Channel unit
ES8506957A1 (en) Line concentrator.
JPS553221A (en) Signal transmission/reception system
JPS5413711A (en) Main-wire connection system of cordless attendant board
JPS5516571A (en) Balanced hybrid circuit
JPS5754493A (en) Extension connecting system in private branch of exchange
JPS5624859A (en) Doorphone control circuit for key telephone system
JPS5541017A (en) Telephone set
JPS5662446A (en) Change-over system for external interface
JPS55161455A (en) Voice mixing unit for service
JPS5563161A (en) Subscriber circuit test system by subscriber side starting
JPS57170635A (en) Radio telephone set
JPS5643864A (en) Facsimile equipment
JPS5472911A (en) Connection system between test equipment for subscribersigma line and trunk
JPS56162567A (en) Test-call generator
JPS6416168A (en) Facsimile equipment
JPS5630344A (en) In-calling signal transmission system