JPS5552663A - Channel test system - Google Patents

Channel test system

Info

Publication number
JPS5552663A
JPS5552663A JP12569778A JP12569778A JPS5552663A JP S5552663 A JPS5552663 A JP S5552663A JP 12569778 A JP12569778 A JP 12569778A JP 12569778 A JP12569778 A JP 12569778A JP S5552663 A JPS5552663 A JP S5552663A
Authority
JP
Japan
Prior art keywords
test
circuit
channel
contacts
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
JP12569778A
Other languages
Japanese (ja)
Inventor
Tsutomu Ishihara
Toshio Katsuki
Michiyuki Kawamura
Yusuke Ogata
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP12569778A priority Critical patent/JPS5552663A/en
Publication of JPS5552663A publication Critical patent/JPS5552663A/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
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
    • H04M3/244—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for multiplex systems

Landscapes

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

Abstract

PURPOSE:To make a channel test standard and independent for different kinds of trunk by providing busy operation preventing off-normal contacts of a channel switch in a trunk circuit and controlling these contacts to perform the channel test. CONSTITUTION:This system is constituted by subscriber's circuit 11, network 12, trunk circuit 13 and test circuit 15, and off-normal contacts 14a and 14b which are provided in the network side conventionally are provided in the trunk circuit side and are controlled independently of channel switch 12a, and channel test circuit 15 is made independent of the trunk circuit. In a non-test state, the test circuit is opened, and busy operation is not performed even if the channel switch is operated under the turning-off state of contacts 14a and 14b. The channel test is performed under the turning-off state of contacts 14a and 14b; and at the completion of the test, they are turned on to disconnect test circuit 15 and connect the trunk circuit to network 14.
JP12569778A 1978-10-14 1978-10-14 Channel test system Pending JPS5552663A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12569778A JPS5552663A (en) 1978-10-14 1978-10-14 Channel test system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12569778A JPS5552663A (en) 1978-10-14 1978-10-14 Channel test system

Publications (1)

Publication Number Publication Date
JPS5552663A true JPS5552663A (en) 1980-04-17

Family

ID=14916463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12569778A Pending JPS5552663A (en) 1978-10-14 1978-10-14 Channel test system

Country Status (1)

Country Link
JP (1) JPS5552663A (en)

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