JPS5664594A - Test system for time-division multichannel - Google Patents

Test system for time-division multichannel

Info

Publication number
JPS5664594A
JPS5664594A JP13982879A JP13982879A JPS5664594A JP S5664594 A JPS5664594 A JP S5664594A JP 13982879 A JP13982879 A JP 13982879A JP 13982879 A JP13982879 A JP 13982879A JP S5664594 A JPS5664594 A JP S5664594A
Authority
JP
Japan
Prior art keywords
pilot signal
time
channel
pilot
detected
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
JP13982879A
Other languages
Japanese (ja)
Inventor
Masakatsu Kuroki
Susumu Iwasaki
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 JP13982879A priority Critical patent/JPS5664594A/en
Publication of JPS5664594A publication Critical patent/JPS5664594A/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)
  • Time-Division Multiplex Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To monitor the normalcy of the transmission line with no intervention of the software, by allotting the specific channel of the time-division channel for the reception of the pilot signal and then checking the contents of the received date for the relevant channel. CONSTITUTION:The signals of the pilot signal generators 1d and 2d are inserted into the specifictime slot under the control of the unit main body devices 1a and 2a, and then transmitted to the remote side via the transmission line 3. The pilot signals received at the units 2 and 1 are detected by the pilot signal detectors 2e and 1e. These pilot signals are detected at all times at the reception side, thus monitoring the fault of the multichannel.
JP13982879A 1979-10-31 1979-10-31 Test system for time-division multichannel Pending JPS5664594A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13982879A JPS5664594A (en) 1979-10-31 1979-10-31 Test system for time-division multichannel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13982879A JPS5664594A (en) 1979-10-31 1979-10-31 Test system for time-division multichannel

Publications (1)

Publication Number Publication Date
JPS5664594A true JPS5664594A (en) 1981-06-01

Family

ID=15254421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13982879A Pending JPS5664594A (en) 1979-10-31 1979-10-31 Test system for time-division multichannel

Country Status (1)

Country Link
JP (1) JPS5664594A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61296833A (en) * 1985-06-25 1986-12-27 Nec Corp Time division bus communication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61296833A (en) * 1985-06-25 1986-12-27 Nec Corp Time division bus communication system

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