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JPS56153858A - Pcm line switching system - Google Patents

Pcm line switching system

Info

Publication number
JPS56153858A
JPS56153858A JP5725080A JP5725080A JPS56153858A JP S56153858 A JPS56153858 A JP S56153858A JP 5725080 A JP5725080 A JP 5725080A JP 5725080 A JP5725080 A JP 5725080A JP S56153858 A JPS56153858 A JP S56153858A
Authority
JP
Japan
Prior art keywords
line
stand
bipolar
routes
current
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
JP5725080A
Other languages
Japanese (ja)
Inventor
Hiromi Hashimoto
Hideaki Morimoto
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 JP5725080A priority Critical patent/JPS56153858A/en
Publication of JPS56153858A publication Critical patent/JPS56153858A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability

Landscapes

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

Abstract

PURPOSE:To switch lines without momentary disconnection, by causing delay times and polarities of signals of current and stand-by routes to coincide with each other respectively and by adding these signals, in the line switching system where lines are switched by the bipolar signal. CONSTITUTION:Transmission terminal swtich 17 of the current line to be switched is driven to branch the signal of the current line to the stand-by line. Delay difference measuring and bipolar pulse polarity deciding circuit 23 is connected to receiving terminal switch 16 of this current line. Consequently, the branched signal is input to frame synchronizing circuits 26 and 26s, and components proportional to the delay difference between the current route and the stand-by route are displayed on meter 28. Polarities of bipolar pulses of both routes are checked by bipolar-unipolar converting circuits 25 and 25s of both routes. The delay time of the stand- by line is so adjusted that delay times of both routes coincide with each other, and the polarity of the stand-by line is inverted if polarities of bipolar pulses do not coincide with each other, and these pulses are added by receiving terminal switch 16.
JP5725080A 1980-04-28 1980-04-28 Pcm line switching system Pending JPS56153858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5725080A JPS56153858A (en) 1980-04-28 1980-04-28 Pcm line switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5725080A JPS56153858A (en) 1980-04-28 1980-04-28 Pcm line switching system

Publications (1)

Publication Number Publication Date
JPS56153858A true JPS56153858A (en) 1981-11-28

Family

ID=13050274

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5725080A Pending JPS56153858A (en) 1980-04-28 1980-04-28 Pcm line switching system

Country Status (1)

Country Link
JP (1) JPS56153858A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007316010A (en) * 2006-05-29 2007-12-06 Olympus Corp Container-discarding method and autoanalyzer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007316010A (en) * 2006-05-29 2007-12-06 Olympus Corp Container-discarding method and autoanalyzer

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