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EK–DWZZH–UG. D01 v
Contents
Revision Record
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vii
About This Guide
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.ix
1 Introducing the DWZZH UltraSCSI Hub
1.1 UltraSCSI Hub Functions ......................................................................................1–1
1.2 Product Descriptions...............................................................................................1–2
1.2.1 DWZZH 3.5" SBB Hubs...................................................................................1–2
1.2.2 DWZZH 5.25" SBB Hubs.................................................................................1–4
1.2.3 SCSI Bus Components......................................................................................1–4
1.3 Product Specifications ............................................................................................1–5
2 Using the DWZZH UltraSCSI Hub
2.1 Large Hub Fair Arbitration .....................................................................................2–1
2.2 Large Hub Addressing Configurations....................................................................2–2
2.3 Narrow Addressing Setting.....................................................................................2–3
2.4 Front Panel ............................................................................................................. 2–6
2.4.1 Fair Arb Disable...............................................................................................2–6
2.4.2 Indicators..........................................................................................................2–7
2.5 Determining the Configuration...............................................................................2–7
2.6 Selecting the SCSI Cables.......................................................................................2–7
2.7 Placement of UltlraSCSI Hubs................................................................................2–7
3 SWCC and UltraSCSI Hubs
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3–1
Glossary
Figures
1–1 DWZZH–21 or DWZZH-03 3.5" SBB Hub.............................................................1–2
1–2 DWZZH–21 Front Panel.........................................................................................1–3
1–3 DWZZH–03 Front Panel.........................................................................................1–3
1–4 DWZZH–05 5.25" SBB Hub..................................................................................1–4
2–1 DWZZH–05 SCSI ID Assignments.........................................................................2–3
2–2 DWZZH–05 SCSI Narrow ID Assignments ............................................................2–4
2–3 DWZZH–05 SCSI Narrow Addressing Jumper .......................................................2–5
2–4 DWZZH–05 SCSI Front Panel................................................................................2–6