SE7712665L - ADDRESS-FREE COMMON LOCATION PROCEDURE FOR DIGITAL SIGNAL TRANSMISSION LINES - Google Patents

ADDRESS-FREE COMMON LOCATION PROCEDURE FOR DIGITAL SIGNAL TRANSMISSION LINES

Info

Publication number
SE7712665L
SE7712665L SE7712665A SE7712665A SE7712665L SE 7712665 L SE7712665 L SE 7712665L SE 7712665 A SE7712665 A SE 7712665A SE 7712665 A SE7712665 A SE 7712665A SE 7712665 L SE7712665 L SE 7712665L
Authority
SE
Sweden
Prior art keywords
loop closure
reg
transmission
address
digital signal
Prior art date
Application number
SE7712665A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE419151B (en
Inventor
R Pospischil
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of SE7712665L publication Critical patent/SE7712665L/en
Publication of SE419151B publication Critical patent/SE419151B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H04B17/407—Monitoring; Testing of relay systems without selective localization
    • H04B17/408—Monitoring; Testing of relay systems without selective localization using successive loop-backs

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Dc Digital Transmission (AREA)

Abstract

For consecutive loop closure formation in the intermediate stations of a digital transmission path, an initialising signal is transmitted to all the regenerators (Reg A1 ... Reg An) of one call direction, followed within a specific time period by the transmission of a further signal containing a loop closure command. The loop circuit is formed in the first regenerative repeater (ZWR1) by the loop closure command, and an initialising signal transmitter (Q11) is simultaneously activated which transmits an initialising signal to the next regenerators (Reg A2 ... Reg An). Due to a short-time interruption of the transmission of the loop closure command, the loop closure is interrupted in the first regenerative repeater (ZWR1) and formed in the next regenerative repeater (ZWR2). The loop closure is forwarded via the transmission path through further interruptions of the transmission of the loop closure command. <IMAGE>
SE7712665A 1976-11-23 1977-11-09 ADDRESS-FREE COMMON LOCATION PROCEDURE FOR TRANSFER DIGITAL SIGNALS AND PROCEDURE FOR EXECUTION OF THE PROCEDURE SE419151B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2653201A DE2653201B2 (en) 1976-11-23 1976-11-23 Address-free fault location method for transmission links for digital signals and arrangement for carrying out this method

Publications (2)

Publication Number Publication Date
SE7712665L true SE7712665L (en) 1978-05-24
SE419151B SE419151B (en) 1981-07-13

Family

ID=5993784

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7712665A SE419151B (en) 1976-11-23 1977-11-09 ADDRESS-FREE COMMON LOCATION PROCEDURE FOR TRANSFER DIGITAL SIGNALS AND PROCEDURE FOR EXECUTION OF THE PROCEDURE

Country Status (9)

Country Link
JP (1) JPS5365614A (en)
BE (1) BE861114A (en)
CH (1) CH626762A5 (en)
DE (1) DE2653201B2 (en)
FR (1) FR2371830A1 (en)
GB (1) GB1551172A (en)
IT (1) IT1088122B (en)
NL (1) NL180555C (en)
SE (1) SE419151B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904057A1 (en) * 1979-02-02 1980-08-07 Siemens Ag ADDRESS-FREE ERROR LOCATION BY LOOP FOR MESSAGE TRANSMISSION ROUTES
DE2942410A1 (en) * 1979-10-19 1981-05-07 Siemens AG, 1000 Berlin und 8000 München ADDRESS-FREE ERROR LOCATION BY LOOP IN A MESSAGE ROUTE
DE3003516A1 (en) * 1980-01-31 1981-08-06 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR FORMING A LOOP IN AN INTERMEDIATE REGENERATOR OF A PCM SYSTEM
DE3015827C2 (en) * 1980-04-24 1982-02-18 Siemens AG, 1000 Berlin und 8000 München Transmission system for digital signals with a device for fault location
FR2486335B1 (en) * 1980-07-02 1988-03-11 Telecommunications Sa STEP-BY-STEP TELELOCATION INSTALLATION OF INTERMEDIATE AMPLIFICATION CIRCUITS OF A MIC LINK
DE3207397C2 (en) * 1982-03-05 1987-03-26 kabelmetal electro GmbH, 3000 Hannover Method for monitoring the functionality of a digital transmission link
DE3532336A1 (en) * 1985-09-11 1987-03-19 Siemens Ag MESSAGE TRANSMISSION SYSTEM WITH MONITORING IN ACCORDANCE WITH THE ISM LOCATION PROCEDURE
US5422876A (en) * 1993-09-07 1995-06-06 Southwestern Bell Technology Resources, Inc. Out-of-band loopback control scheme

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2134783C3 (en) * 1971-07-12 1979-06-21 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method for determining errors in the intermediate points provided with regenerators of a transmission system operating with pulse code modulation

Also Published As

Publication number Publication date
NL180555B (en) 1986-10-01
CH626762A5 (en) 1981-11-30
JPS5365614A (en) 1978-06-12
IT1088122B (en) 1985-06-10
JPS5745106B2 (en) 1982-09-25
FR2371830B1 (en) 1982-11-19
NL180555C (en) 1987-03-02
GB1551172A (en) 1979-08-22
FR2371830A1 (en) 1978-06-16
NL7712866A (en) 1978-05-25
BE861114A (en) 1978-03-16
DE2653201A1 (en) 1978-05-24
DE2653201B2 (en) 1978-08-31
DE2653201C3 (en) 1979-04-26
SE419151B (en) 1981-07-13

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