(19)
(11) EP 0 297 865 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.05.1990 Bulletin 1990/18

(43) Date of publication A2:
04.01.1989 Bulletin 1989/01

(21) Application number: 88305940.4

(22) Date of filing: 30.06.1988
(51) International Patent Classification (IPC)4: H01R 13/66, H03H 7/48, H01R 23/66
(84) Designated Contracting States:
AT BE CH DE ES FR GB IT LI NL SE

(30) Priority: 03.07.1987 GB 8715742

(71) Applicant: RAYCHEM PONTOISE S.A.
F-95310 Saint-Ouen l'Aumone (FR)

(72) Inventor:
  • Clements, Victor
    Swindon Wiltshire (GB)

(74) Representative: Dlugosz, A.C. et al
Raychem Limited Intellectual Property Law Department Faraday Road Dorcan
Swindon Wiltshire
Swindon Wiltshire (GB)


(56) References cited: : 
   
       


    (54) Data transmission bus coupler


    (57) A plug-in coupler for forming a splice between a data transmission bus of a multiplexed data trans­mission system and a plurality of stubs of the system comprises a generally flat housing having a pair of disconnectable connector portions 5 that are connected to each other within the housing by a pair of conduc­tors 7 so that an in-line splice can be formed in the data bus. The housing also has an array of contacts 6 for forming releasable connections to a number of stubs, the contacts being transformer coupled to the conductors 7 via isolation transformers 8 and resistors 9.





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