LSI U40HVD A.2.2 The SCSI Interface

A.2.2 The SCSI Interface

The SCSI interface operates as a 8-bit or 16-bit, synchronous or asynchronous, differential bus, and supports SCSI-2 protocols and 16-bit arbitration. The interface is made through connectors J2 and J3 for Channel A. Channel B connectors are J5 and J6. Connectors J2 and J5 are 68-pin high density right-angle receptacles for internal connections. Connectors J3 and J6 are 68-pin VHDCI right-angle receptacles that protrude through the back panel bracket.

Active differential SCSI termination is provided automatically. SCSI TERMPWR is also supplied by the board. Table A.4 and Table A.5 show the signal assignments for J2/J5, and J3/J6.

Operational Environment

A-7

Contents

USER’S GUIDE Electromagnetic Compatibility Notices Page Page Preface Page Contents Appendix A Appendix B Glossary Terms and Abbreviations Index Customer Feedback Figures Page Tables Page Using the LSIU40HVD 1.1General Description 1.2Features 1.2.1PCI Interface 1.2.2SCSI Interface 1.2.3Board Characteristics 1.3Interface Descriptions 1.3.1The PCI Interface 1.3.2The SCSI Interface 1.3.3Ultra SCSI Installing the LSIU40HVD 2.1Quick Installation Procedure Page 2.2Detailed Installation Procedure 2.2.1Before You Start 2.2.2Inserting the Host Adapter Figure 2.1 Hardware Connections for the LSIU40HVD 2.2.3Connecting the SCSI Peripherals Table SCSI Bus Widths and Speeds Figure 2.3 SCSI Cables 2.2.3.1Making Internal SCSI Bus Connections Page Figure 2.5 Internal SCSI Ribbon Cable to Internal SCSI Device Connection Figure 2.6 Connecting Additional Internal SCSI Devices Page Figure 2.8 SCSI LED Connectors 2.2.3.2Making External SCSI Bus Connections Figure 2.9 External Cable to Host Adapter Figure 2.10 External Cable to External SSI Device 2.2.4SCSI Bus Termination 2.2.4.1Internal SCSI Connections Figure 2.12 Internal SCSI Device Termination 2.2.4.2External SCSI Connections Figure 2.13 External SCSI Device Termination 2.2.4.3Internal and External SCSI Connections Figure 2.14 Internal and External SCSI Device Termination 2.2.5Setting SCSI IDs 2.3Setting Interrupts 2.4Completing the Installation Page Conﬁguring the Page Page Page Page Page Page Page Page Page Page Page Page Page Appendix A Technical Speciﬁcations A.1 Physical Environment A.1.1 Physical Characteristics A.1.2 Electrical Characteristics A.1.3 Thermal, Atmospheric Characteristics A.1.4 Electromagnetic Compliance A.1.5 Safety Characteristics A.2 Operational Environment A.2.1 The PCI Interface Table A.2 PCI Connector J1 (Front) Table A.3 PCI Connector J1 (Back) A.2.2 The SCSI Interface Table A.4 SCSI Connectors J2/J5 and J3/J6 A.2.3 The LED Interface Page Appendix B Glossary Terms and Abbreviations Conﬁguration CPU DMA Bus Master Device Driver File Firmware Hard Disk Host Host Adapter Motherboard Multitasking Multithreading NVRAM Operating System Port Address Port Number Queue Tags RAM RISC Core SCSI ID SDMS Single-Ended STA Synchronous Data Transfer Wide SCSI Wide Ultra SCSI Wide Ultra2 Word Page Index Page Customer Feedback Reader’s Comments http://www.lsilogic.com/contacts/na_salesofﬁces.html