Claims
- 1. A PCSB assembly comprising:
a PCSB; a plurality LVD 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.
- 2. The PCSB assembly of claim 1 wherein said PCSB comprises a board peripheral portion and wherein said LVD SCSI direct connector is mounted on said board peripheral portion.
- 3. The PCSB assembly of claim 1 wherein said PCSB comprises a board peripheral portion and wherein said plurality of traces are positioned on said peripheral portion.
- 4. The system board assembly of claim 2 wherein said plurality of traces are positioned on said peripheral portion.
- 5. The PCSB of claim 1 further comprising at least one LVD SCSI bus upstream terminator connected to upstream end portions of said LVD SCSI bus signal traces and at least one LVD SCSI bus downstream terminator connected to downstream end portions of said LVD SCSI bus signal traces.
- 6. The PCSB of claim 4 further comprising at least one LVD SCSI bus upstream terminator connected to upstream end portions of said LVD SCSI bus signal traces and at least one LVD SCSI bus downstream terminator connected to downstream end portions of said LVD SCSI bus signal traces.
- 7. The PCSB of claim 4 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 said 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.
- 8. The PCSB of claim 7 wherein said second plurality of signal traces comprise at least one of a RESET signal trace, a SELECT signal trace and a BUSY signal trace.
- 9. The PCSB of claim 7 wherein said second plurality of signal traces comprise at least two of a RESET signal trace, a SELECT signal trace and a BUSY signal trace.
- 10. The PCSB of claim 7 wherein said second plurality of signal traces comprise a RESET signal trace, a SELECT signal trace and a BUSY signal trace.
- 11. The PCSB of claim 4 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 said PCSB and a second plurality of traces extending from said LVD SCSI controller to said LVD SCSI direct connector entirely 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.
- 12. The PCSB of claim 11 wherein said second plurality of traces comprise a RESET signal trace, a SELECT signal trace and a BUSY signal trace.
- 13. The PCSB of claim 1 comprising a plurality of a LVD SCSI direct connectors mounted on said PCSB and electrically connected to said plurality of traces wherein at least one of said plurality of traces is located in a first surface layer of said PCSB and is electrically connected to a first end of a trace stub positioned in a second surface layer of said PCSB by a via and wherein said trace stub has a second end connected to a pin portion of said LVD SCSI direct connector.
- 14. A method of making a PCSB assembly comprising:
forming a plurality LVD 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.
- 15. A PCSB assembly comprising:
a PCSB; means for conducting LVD SCSI bus signals formed in said PCSB; and means for directly mounting a LVD SCSI device on said PCSB electrically connected with said means for conducting LVD SCSI bus signals.
- 16. A computer comprising:
a printed circuit board; a computer central processing unit operably mounted on said printed circuit board; a LVD 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.
- 17. The computer of claim 16 wherein said LVD SCSI signal traces are terminated exclusively by LVD SCSI terminators mounted on said printed circuit board.
RELATED APPLICATIONS
[0001] The present application is related to U.S. patent application Ser. No. ______ of Heather Lea Stickler and Lisa Ann Caselli for Printed Circuit Board Layout, Attorney Docket No. 10007356-1 which was filed on the same date as the present application and which is hereby incorporated by reference for all that it discloses.