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JPS5717294A - Memory switch channel diagnostic system - Google Patents

Memory switch channel diagnostic system

Info

Publication number
JPS5717294A
JPS5717294A JP9164380A JP9164380A JPS5717294A JP S5717294 A JPS5717294 A JP S5717294A JP 9164380 A JP9164380 A JP 9164380A JP 9164380 A JP9164380 A JP 9164380A JP S5717294 A JPS5717294 A JP S5717294A
Authority
JP
Japan
Prior art keywords
time slot
slot conversion
read out
readout cycle
conversion section
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
JP9164380A
Other languages
Japanese (ja)
Inventor
Kenji Miyayasu
Takayuki Iguchi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9164380A priority Critical patent/JPS5717294A/en
Publication of JPS5717294A publication Critical patent/JPS5717294A/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)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To detect the failure due to an even number of bits, by checking the hardware of time slot conversion section by itself, through the addition of one readout cycle newly to the operation cycle of a time slot conversion storage memory. CONSTITUTION:To perform self check of the time slot conversion section, the information tj read out at the 1st readout cycle is stored in the latch register relating to an address register 9. The information read out at the 2nd readout cycle does not access the data buffer memory but it is inputted to a collation circuit 11. At this collation circuit, the content of the register 10 and the information read out at the 2nd readout cycle are compared and collated to check the time slot conversion section by itself.
JP9164380A 1980-07-07 1980-07-07 Memory switch channel diagnostic system Pending JPS5717294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9164380A JPS5717294A (en) 1980-07-07 1980-07-07 Memory switch channel diagnostic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9164380A JPS5717294A (en) 1980-07-07 1980-07-07 Memory switch channel diagnostic system

Publications (1)

Publication Number Publication Date
JPS5717294A true JPS5717294A (en) 1982-01-28

Family

ID=14032200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9164380A Pending JPS5717294A (en) 1980-07-07 1980-07-07 Memory switch channel diagnostic system

Country Status (1)

Country Link
JP (1) JPS5717294A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0216044A (en) * 1988-05-03 1990-01-19 Flex Prod Inc Thin-film structure having magnetic characteristic and color shifting characteristic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0216044A (en) * 1988-05-03 1990-01-19 Flex Prod Inc Thin-film structure having magnetic characteristic and color shifting characteristic

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