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US 6,618,787 B2Granted
Computer printed circuit system board with LVD SCSI device direct connector
AssigneeHewlett-Packard Development Company, L.P.
InventorsLisa Ann Caselli, Heather Lea Stickler, Jon-Christophe Bernard Febvre
Life of this patent
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Abstract
A PCSB assembly including a PCSB; a plurality LVD SCSI bus signal traces formed in the PCSB; and a LVD SCSI direct connector mounted on the PCSB and electrically connected to the plurality of traces.
Claims17
A Printed Circuit System Board (PCSB) assembly comprising:
- a PCSB;
- a plurality Low Voltage Differential (LVD) Small Computer Systems Interface (SCSI) bus signal traces formed in said PCSB;
- and
- a LVD SCSI direct connector mounted on said PCSB and electrically connected to said plurality of traces
- wherein said LVD SCSI bus traces comprise a first plurality of signal traces extending from a LVD SCSI controller to said LVD SCSI direct connector entirely in one exterior board layer of the PCSB and a second plurality of traces extending from said LVD SCSI controller to said LVD SCSI direct connector at least partially in a second exterior board layer of said PCSB opposite said first layer and wherein said second plurality of traces comprises at least one of a RESET signal trace, a SELECT signal trace and a BUSY signal trace.
2 more elements
A method of making a Printed Circuit System Board (PCSB) assembly comprising:
- forming a plurality Low Voltage Differential (LVD) Small Computer Systems Interface (SCSI) bus signal traces on a PCSB;
- mounting a LVD SCSI direct connector on said PCSB;
- and
- electrically connecting said plurality of traces to said LVD SCSI direct connector
- wherein said LVD SCSI bus traces comprise a first plurality of signal traces extending from a LVD SCS controller to said LVD SCSI direct connector entirely in one exterior board layer of the PCSB and a second plurality of traces extending from said LVD SCSI controller to said LVD SCSI direct connector at least partially in a second exterior board layer of said PCSB opposite said first layer and wherein said second plurality of traces comprise at least one of a RESET signal trace, a SELECT signal trace and a BUSY signal trace.
2 more elements
The method of claim further comprising:
- mounting a second LVD SCSI direct connector on said PCSB;
- electrically connecting said plurality of traces to said second LVD SCSI direct connector;
- and
- connecting upstream ends of said plurality of LVD SCSI bus signal traces to at least one upstream terminator mounted on said PCSB and connecting downstream ends of said plurality of LVD SCSI bus signal traces to at least one downstream terminator mounted on said PCSB.
1 more element
A computer comprising:
- a printed circuit board;
- a computer central processing unit operably mounted on said printed circuit board;
- a Low Voltage Differential (LVD) Small Computer Systems Interface (SCSI) bus controller mounted on said printed circuit board;
- a LVD SCSI direct connector mounted on said printed circuit board;
- a plurality of LVD SCSI signal traces electrically connected to said LVD SCSI bus controller and to said LVD SCSI direct connector;
- and
- a LVD SCSI device directly operably mounted in said LVD SCSI direct connector
- wherein said LVD SCSI signal traces comprise a first plurality of signal traces extending from said LVD SCSI controller to said LVD SCSI direct connector entirely in one exterior board layer of he PCSB and a second plurality of traces extending from said LVD SCSI controller to said LVD SCSI direct connector at least partially in a second exterior board layer of said PCSB opposite said first layer and wherein said second plurality of traces comprises at least one of a RESET signal trace, a SELECT signal trace and a BUSY signal trace.
5 more elements
Dependencies are inferred from the claim text.