GB1510047A - Digital signal transmission systems - Google Patents

Digital signal transmission systems

Info

Publication number
GB1510047A
GB1510047A GB44341/76A GB4434176A GB1510047A GB 1510047 A GB1510047 A GB 1510047A GB 44341/76 A GB44341/76 A GB 44341/76A GB 4434176 A GB4434176 A GB 4434176A GB 1510047 A GB1510047 A GB 1510047A
Authority
GB
United Kingdom
Prior art keywords
transmission
substitute
digital signal
signal transmission
transmission systems
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.)
Expired
Application number
GB44341/76A
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.)
Siemens AG
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 GB1510047A publication Critical patent/GB1510047A/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

1510047 Multiplexing SIEMENS AG 26 Oct 1976 [12 Dec 1975] 44341/76 Heading H4M In a method of monitoring individual sections of transmission links for digital signals each of which is assigned a time channel, an item of additional information is periodically included in the transmitted signal. This additional information includes a component whose information content is set at the beginning of each transmission section in dependence upon the presence of a substitute pulse transmission in one or more time channels, which substitute pulses replace the transmitted signals when the monitored section has been recognized as faulty. This component is analysed at the end of each transmission section in respect of its information content, whereby the receiving end station is able to determine which particular time channels carry the substitute pulses.
GB44341/76A 1975-12-12 1976-10-26 Digital signal transmission systems Expired GB1510047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752556079 DE2556079C2 (en) 1975-12-12 1975-12-12 Method for monitoring individual transmission sections for digital signals and arrangement for carrying out the method

Publications (1)

Publication Number Publication Date
GB1510047A true GB1510047A (en) 1978-05-10

Family

ID=5964243

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44341/76A Expired GB1510047A (en) 1975-12-12 1976-10-26 Digital signal transmission systems

Country Status (12)

Country Link
AT (1) AT360089B (en)
BE (1) BE849289A (en)
CH (1) CH597725A5 (en)
DE (1) DE2556079C2 (en)
DK (1) DK557376A (en)
FR (1) FR2335108A1 (en)
GB (1) GB1510047A (en)
IE (1) IE44301B1 (en)
IT (1) IT1065202B (en)
LU (1) LU75776A1 (en)
NL (1) NL172610C (en)
SE (1) SE410690B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473820A1 (en) * 1980-01-11 1981-07-17 Telecommunications Sa METHOD AND SYSTEM FOR INITIALIZING THE SECURITY OF A LINE OF A DIGITAL TRANSMISSION ARTERY
IT1212437B (en) * 1980-06-30 1989-11-22 Sits Soc It Telecom Siemens TRANSMISSION CIRCUIT FOR PCM SYSTEMS.
US5212475A (en) * 1988-05-18 1993-05-18 Siemens Aktiengesellschaft Method for generating an alarm inhibit signal
US4964112A (en) * 1988-06-01 1990-10-16 Siemens Aktiengesellschaft Method for monitoring the quality of a digital signal in sections of a data transmission circuit

Also Published As

Publication number Publication date
LU75776A1 (en) 1977-04-28
ATA847476A (en) 1980-05-15
BE849289A (en) 1977-04-01
AT360089B (en) 1980-12-29
IE44301L (en) 1977-06-12
IT1065202B (en) 1985-02-25
NL172610B (en) 1983-04-18
SE7612654L (en) 1977-06-13
DE2556079B1 (en) 1977-03-17
IE44301B1 (en) 1981-10-07
DK557376A (en) 1977-06-13
NL7613848A (en) 1977-06-14
CH597725A5 (en) 1978-04-14
FR2335108B1 (en) 1981-05-29
DE2556079C2 (en) 1977-10-27
NL172610C (en) 1983-09-16
SE410690B (en) 1979-10-22
FR2335108A1 (en) 1977-07-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee