JPS5657383A - Continuity test system of called subscriber circuit - Google Patents

Continuity test system of called subscriber circuit

Info

Publication number
JPS5657383A
JPS5657383A JP13264479A JP13264479A JPS5657383A JP S5657383 A JPS5657383 A JP S5657383A JP 13264479 A JP13264479 A JP 13264479A JP 13264479 A JP13264479 A JP 13264479A JP S5657383 A JPS5657383 A JP S5657383A
Authority
JP
Japan
Prior art keywords
circuit
called subscriber
test pattern
subscriber circuit
continuity 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
JP13264479A
Other languages
Japanese (ja)
Other versions
JPS6155318B2 (en
Inventor
Shuichi Ashihara
Eiji Minamitani
Tatsuo Sunochi
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 JP13264479A priority Critical patent/JPS5657383A/en
Publication of JPS5657383A publication Critical patent/JPS5657383A/en
Publication of JPS6155318B2 publication Critical patent/JPS6155318B2/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
    • H04M3/24—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)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To facilitate an easy continuity test of the called subscriber circuit, by forming a digital loop in the called subscriber circuit by means of the ringing tone control signal. CONSTITUTION:The pad switch memory PSM can read and send the test pattern via the switch PSW and by the command of the central control unit CC after storing the form signal of the test pattern at its own part. The test pattern signal is sent to the called subscriber circuit LC through the time switch TSW and then returned at the digital loop circuit to reach the calling subscriber via the multiplex MPX and the switch TSW. Thus the time slot is sampled at the dropper D to be sent to the check circuit. Accordingly, no test pattern signal generating circuit is required in that case. Thus a continuity test is given simultaneously with transmission of the ringing tone, thus simplifying the timing process.
JP13264479A 1979-10-15 1979-10-15 Continuity test system of called subscriber circuit Granted JPS5657383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13264479A JPS5657383A (en) 1979-10-15 1979-10-15 Continuity test system of called subscriber circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13264479A JPS5657383A (en) 1979-10-15 1979-10-15 Continuity test system of called subscriber circuit

Publications (2)

Publication Number Publication Date
JPS5657383A true JPS5657383A (en) 1981-05-19
JPS6155318B2 JPS6155318B2 (en) 1986-11-27

Family

ID=15086135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13264479A Granted JPS5657383A (en) 1979-10-15 1979-10-15 Continuity test system of called subscriber circuit

Country Status (1)

Country Link
JP (1) JPS5657383A (en)

Also Published As

Publication number Publication date
JPS6155318B2 (en) 1986-11-27

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