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GB2420475B - Communications module - Google Patents

Communications module

Info

Publication number
GB2420475B
GB2420475B GB0425680A GB0425680A GB2420475B GB 2420475 B GB2420475 B GB 2420475B GB 0425680 A GB0425680 A GB 0425680A GB 0425680 A GB0425680 A GB 0425680A GB 2420475 B GB2420475 B GB 2420475B
Authority
GB
United Kingdom
Prior art keywords
communications module
communications
module
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 - Lifetime
Application number
GB0425680A
Other versions
GB0425680D0 (en
GB2420475A (en
Inventor
Jim Bull
Peter Lawrence
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 Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co Ltd
Westinghouse Brake and Signal Holdings 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 Westinghouse Brake and Signal Co Ltd, Westinghouse Brake and Signal Holdings Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB0425680A priority Critical patent/GB2420475B/en
Publication of GB0425680D0 publication Critical patent/GB0425680D0/en
Publication of GB2420475A publication Critical patent/GB2420475A/en
Application granted granted Critical
Publication of GB2420475B publication Critical patent/GB2420475B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/423—Loop networks with centralised control, e.g. polling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
    • H04L12/462—LAN interconnection over a bridge based backbone
    • H04L12/4625—Single bridge functionality, e.g. connection of two networks over a single bridge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/4026—Bus for use in automation systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
GB0425680A 2004-11-23 2004-11-23 Communications module Expired - Lifetime GB2420475B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0425680A GB2420475B (en) 2004-11-23 2004-11-23 Communications module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0425680A GB2420475B (en) 2004-11-23 2004-11-23 Communications module

Publications (3)

Publication Number Publication Date
GB0425680D0 GB0425680D0 (en) 2004-12-22
GB2420475A GB2420475A (en) 2006-05-24
GB2420475B true GB2420475B (en) 2007-03-21

Family

ID=33548677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0425680A Expired - Lifetime GB2420475B (en) 2004-11-23 2004-11-23 Communications module

Country Status (1)

Country Link
GB (1) GB2420475B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030142664A1 (en) * 1997-12-31 2003-07-31 At&T Corp. Network server platform (NSP) for a hybrid coaxial/twisted pair local loop network service architecture

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030142664A1 (en) * 1997-12-31 2003-07-31 At&T Corp. Network server platform (NSP) for a hybrid coaxial/twisted pair local loop network service architecture

Also Published As

Publication number Publication date
GB0425680D0 (en) 2004-12-22
GB2420475A (en) 2006-05-24

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20241122