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    1.
    发明专利
    未知

    公开(公告)号：DE3889214D1

    公开(公告)日：1994-05-26

    申请号：DE3889214

    申请日：1988-01-22

    Applicant: IBM

    Inventor： BADAOUI MOHAMED ,  DAMBRICOURT RICHARD ,  FRANQUENOUILLE JEAN-PAUL ,  GARCIA CHRISTIAN ,  SPALMACIN-ROMA SYLVIE ,  GRANGER YVES

    IPC: H04L69/14 ,  G06F12/06 ,  G06F13/22 ,  G06F13/38 ,  H04L12/403 ,  H04L12/52

    Abstract: A scanning protocol is provided for the scanning of a plurality of the serial transmission lines (26) connecting users' devices to the scanning means (10, 16, 17) of a communication device, said lines being coupled to the scanning means through line interface couplers (LICs) (20) having each a wired address (n, n min , ...) known to the scanning means. This scanning protocol requires that for each LIC configuration, a given LICn, having a wired address n, be re-addressable with a logical address n min corresponding to the wired address of any other active LICn min , in order to determine, for said LIC configuration, the shortest possible scanning scheme including all the active LICs. The re-addressing of a LICn of wired address n, with a logical address n min , includes the steps of : - resetting the LICn to be affected a logical address n min , - setting the logical address n min into LICn; - locking said logical address n min into said LICn, and - enabling the lines (26) connected to LICn re-addressed with logical address n min .

    3.
    发明专利
    未知

    公开(公告)号：DE68926740D1

    公开(公告)日：1996-08-01

    申请号：DE68926740

    申请日：1989-04-25

    Applicant: IBM

    Inventor： BADAOUI MOHAMED ,  CALVIGNAC JEAN ,  CARLE GUY ,  GARCIA CHRISTIAN ,  VACHEE PIERRE

    IPC: H04L29/10 ,  G06F13/38 ,  H04L12/28

    Abstract: Interconnection system for attaching a maximum number n of equipment users EU (DCE or DTE) to the line adapter 2 of a communication processing unit. The user data and control bits are carried on transmit and receive serial link 4 and 6 in data and control slot entities arranged in frame of period T, comprising one entity per user. These entities are allocated to the user equipments through multiplexing/demultiplexing circuit 10, link adapters 12-1 to 12-8 and connecting boxes 30-1 to 30-8. The user equipments are connected though active remote modules which are specific to the standardized interfaces of the user equipments. Link adapters 12-1 to 12-8 add to the data and control slot entities an outband slot which is used for exchanging control information, such as the active remote module address and type which are stored in memory 42, to be transmitted to the line adapter 2. The advantage of the interconnection system is that the attachment of the user equipments is simplified.

    4.
    发明专利
    未知

    公开(公告)号：DE3889214T2

    公开(公告)日：1994-11-17

    申请号：DE3889214

    申请日：1988-01-22

    Applicant: IBM

    Inventor： BADAOUI MOHAMED ,  DAMBRICOURT RICHARD ,  FRANQUENOUILLE JEAN-PAUL ,  GARCIA CHRISTIAN ,  SPALMACIN-ROMA SYLVIE ,  GRANGER YVES

    IPC: H04L69/14 ,  G06F12/06 ,  G06F13/22 ,  G06F13/38 ,  H04L12/403 ,  H04L12/52

    Abstract: A scanning protocol is provided for the scanning of a plurality of the serial transmission lines (26) connecting users' devices to the scanning means (10, 16, 17) of a communication device, said lines being coupled to the scanning means through line interface couplers (LICs) (20) having each a wired address (n, n min , ...) known to the scanning means. This scanning protocol requires that for each LIC configuration, a given LICn, having a wired address n, be re-addressable with a logical address n min corresponding to the wired address of any other active LICn min , in order to determine, for said LIC configuration, the shortest possible scanning scheme including all the active LICs. The re-addressing of a LICn of wired address n, with a logical address n min , includes the steps of : - resetting the LICn to be affected a logical address n min , - setting the logical address n min into LICn; - locking said logical address n min into said LICn, and - enabling the lines (26) connected to LICn re-addressed with logical address n min .

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