JPS5560360A - Supervisory system for single-channel codec of digital terminal equipment - Google Patents

Supervisory system for single-channel codec of digital terminal equipment

Info

Publication number
JPS5560360A
JPS5560360A JP13263478A JP13263478A JPS5560360A JP S5560360 A JPS5560360 A JP S5560360A JP 13263478 A JP13263478 A JP 13263478A JP 13263478 A JP13263478 A JP 13263478A JP S5560360 A JPS5560360 A JP S5560360A
Authority
JP
Japan
Prior art keywords
channel
pulse
terminal equipment
supervisory system
digital terminal
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
JP13263478A
Other languages
Japanese (ja)
Other versions
JPS585544B2 (en
Inventor
Kiyokazu Ito
Hideo Tatsuno
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 JP13263478A priority Critical patent/JPS585544B2/en
Publication of JPS5560360A publication Critical patent/JPS5560360A/en
Publication of JPS585544B2 publication Critical patent/JPS585544B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/14—Monitoring arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

PURPOSE:To make it possible to test only a desired channel by sending it back by a multiplex part of single-channel codecs by coupling the output and input parts of the multiplex part and then by applying an adequated timing pulse. CONSTITUTION:For reflecting tests of coding part 4m and decoding part 5m, assigning (m) by supervisory assignment information trnasmitter circuit 17 causes decorder 18 to drive relay circuits 15m and 16m, Which make connection between coding part 4m and transmission part 10, and decoding part 5m and reception part 11. Further, channel-pulse transmitter circuit 19 sends a channel pulse in the m-th phase to line 22, so that only a digit pulse string of the m-th channel time slot will be sent back by way of gate 13.
JP13263478A 1978-10-30 1978-10-30 Single channel codec monitoring method in digital terminal equipment Expired JPS585544B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13263478A JPS585544B2 (en) 1978-10-30 1978-10-30 Single channel codec monitoring method in digital terminal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13263478A JPS585544B2 (en) 1978-10-30 1978-10-30 Single channel codec monitoring method in digital terminal equipment

Publications (2)

Publication Number Publication Date
JPS5560360A true JPS5560360A (en) 1980-05-07
JPS585544B2 JPS585544B2 (en) 1983-01-31

Family

ID=15085906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13263478A Expired JPS585544B2 (en) 1978-10-30 1978-10-30 Single channel codec monitoring method in digital terminal equipment

Country Status (1)

Country Link
JP (1) JPS585544B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6118236A (en) * 1984-06-29 1986-01-27 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Method of folding data communication system with multiplex link
JPS62254538A (en) * 1986-04-28 1987-11-06 Nec Corp Supervisory equipment for single channel coder/decoder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6118236A (en) * 1984-06-29 1986-01-27 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Method of folding data communication system with multiplex link
JPS62254538A (en) * 1986-04-28 1987-11-06 Nec Corp Supervisory equipment for single channel coder/decoder

Also Published As

Publication number Publication date
JPS585544B2 (en) 1983-01-31

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