NL7811771A - SPARE SWITCHING OF DIGITAL TRANSMISSION ROADS. - Google Patents

SPARE SWITCHING OF DIGITAL TRANSMISSION ROADS.

Info

Publication number
NL7811771A
NL7811771A NL7811771A NL7811771A NL7811771A NL 7811771 A NL7811771 A NL 7811771A NL 7811771 A NL7811771 A NL 7811771A NL 7811771 A NL7811771 A NL 7811771A NL 7811771 A NL7811771 A NL 7811771A
Authority
NL
Netherlands
Prior art keywords
digital transmission
spare switching
transmission roads
roads
spare
Prior art date
Application number
NL7811771A
Other languages
Dutch (nl)
Other versions
NL183377C (en
NL183377B (en
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 NL7811771A publication Critical patent/NL7811771A/en
Publication of NL183377B publication Critical patent/NL183377B/en
Application granted granted Critical
Publication of NL183377C publication Critical patent/NL183377C/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Time-Division Multiplex Systems (AREA)
NLAANVRAGE7811771,A 1977-11-30 1978-11-30 TRANSMISSION SYSTEM, IN WHICH A FAILED TRANSMISSION ROAD MAY BE CONVERTED TO A RESERVE TRANSMISSION ROAD. NL183377C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2753420A DE2753420C3 (en) 1977-11-30 1977-11-30 Device for equivalent switching of operating systems for digital signals

Publications (3)

Publication Number Publication Date
NL7811771A true NL7811771A (en) 1979-06-01
NL183377B NL183377B (en) 1988-05-02
NL183377C NL183377C (en) 1988-10-03

Family

ID=6025003

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7811771,A NL183377C (en) 1977-11-30 1978-11-30 TRANSMISSION SYSTEM, IN WHICH A FAILED TRANSMISSION ROAD MAY BE CONVERTED TO A RESERVE TRANSMISSION ROAD.

Country Status (6)

Country Link
JP (1) JPS584503B2 (en)
DE (1) DE2753420C3 (en)
FR (1) FR2410918A1 (en)
GB (1) GB2012526B (en)
IT (1) IT1100376B (en)
NL (1) NL183377C (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5484403A (en) * 1977-12-19 1979-07-05 Hitachi Ltd Double system transmission line switching system
DE2939253A1 (en) * 1979-09-27 1981-04-30 Siemens AG, 1000 Berlin und 8000 München Multiple redundant data transmission system - uses test signal to control change-over of transmission lines if line failure occurs
DE3330683A1 (en) * 1983-08-25 1985-03-14 Siemens AG, 1000 Berlin und 8000 München TRANSMISSION SYSTEM FOR DIGITAL SIGNALS, HIGH STEP-SPEED WITH ADDITIONAL SIGNAL TRANSMISSION
EP0142138B1 (en) * 1983-11-11 1988-10-26 Fujitsu Limited Protection switching system for carrier transmission line
DE3526020A1 (en) * 1985-07-20 1987-01-22 Philips Patentverwaltung DEVICES FOR GENERATING THE IDENTIFICATION OF UNSWITCHED TRANSMISSION ROUTES OF A DIGITAL TRANSMISSION SYSTEM
US4646286A (en) * 1985-07-30 1987-02-24 Northern Telecom Limited Communications system with protection switching and channel identities
DE3642141A1 (en) * 1986-12-10 1988-06-16 Philips Patentverwaltung METHOD FOR DECENTRALIZED POWER SUPPLY CIRCUIT
GB8912090D0 (en) * 1989-05-25 1989-07-12 Bicc Plc Data networks
JP3115676B2 (en) * 1992-02-12 2000-12-11 富士通株式会社 Apparatus and method for automatically switching signal system of subscriber digital transmission apparatus
GB2267415B (en) * 1992-05-19 1996-02-07 Sony Broadcast & Communication Signal switching
US5712603A (en) * 1996-08-09 1998-01-27 Kmw Usa, Inc. Multipole multiposition microwave switch with a common redundancy
US6631018B1 (en) 1997-08-27 2003-10-07 Nortel Networks Limited WDM optical network with passive pass-through at each node
GB2345422A (en) * 1998-12-31 2000-07-05 Inventec Corp Method for data serial transfer

Also Published As

Publication number Publication date
GB2012526B (en) 1982-03-10
DE2753420C3 (en) 1980-06-19
GB2012526A (en) 1979-07-25
IT7830132A0 (en) 1978-11-24
NL183377C (en) 1988-10-03
JPS584503B2 (en) 1983-01-26
FR2410918A1 (en) 1979-06-29
JPS54100208A (en) 1979-08-07
NL183377B (en) 1988-05-02
DE2753420A1 (en) 1979-06-07
DE2753420B2 (en) 1979-10-04
IT1100376B (en) 1985-09-28
FR2410918B1 (en) 1984-01-20

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee