JPS5485615A - Switch network type automatic continuity test - Google Patents

Switch network type automatic continuity test

Info

Publication number
JPS5485615A
JPS5485615A JP15287777A JP15287777A JPS5485615A JP S5485615 A JPS5485615 A JP S5485615A JP 15287777 A JP15287777 A JP 15287777A JP 15287777 A JP15287777 A JP 15287777A JP S5485615 A JPS5485615 A JP S5485615A
Authority
JP
Japan
Prior art keywords
trunk
terminal
test
continuity test
terminals
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
JP15287777A
Other languages
Japanese (ja)
Inventor
Takeji Aizawa
Kenji Ashihara
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15287777A priority Critical patent/JPS5485615A/en
Publication of JPS5485615A publication Critical patent/JPS5485615A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
    • H04Q1/22—Automatic arrangements
    • H04Q1/24—Automatic arrangements for connection devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To secure an automatic continuity test in a high speed between the all line terminals and the trunk terminals by providing the switch circuit network between the line terminal and the test trunk as well as between the line terminal and trunk containing the subscriber monitor relay. CONSTITUTION:Switch network SWNW is provided between selected line terminal LT and test trunk TSTT as well as between terminal LT and trunk TRK containing subscriber monitor relay A, thus connecting the both trunks. Under this connection state, a short circuit is given within TSTT to the channel between terminal LT and TRK to carry out the continuity test through the fact whether relay A operates to all channels with the above short circuit. This test is carried out automatically under the program control with every change of the selection of terminal TL or trunk TRK containing relay A. Thus, an automatic and high-speed continuity test can be given between all line terminals and the trunk terminals.
JP15287777A 1977-12-21 1977-12-21 Switch network type automatic continuity test Pending JPS5485615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15287777A JPS5485615A (en) 1977-12-21 1977-12-21 Switch network type automatic continuity test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15287777A JPS5485615A (en) 1977-12-21 1977-12-21 Switch network type automatic continuity test

Publications (1)

Publication Number Publication Date
JPS5485615A true JPS5485615A (en) 1979-07-07

Family

ID=15550064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15287777A Pending JPS5485615A (en) 1977-12-21 1977-12-21 Switch network type automatic continuity test

Country Status (1)

Country Link
JP (1) JPS5485615A (en)

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