Technical data

Contents
Preface ix
Chapter 1 System Overview
1.1 Front View and Physical Description ................... 1–2
1.1.1 BA430 Enclosure . . .............................. 1–6
1.1.1.1 Mass Storage Shelf ............................ 1–8
1.1.1.2 Card Cage ................................... 1–10
1.1.1.3 CPU Cover Panel .............................. 1–12
1.1.1.4 DSSI and KZQSA Connectors .................... 1–14
1.1.1.5 Power Supply Controls and Indicators . ............. 1–15
1.1.1.6 Fans . . ...................................... 1–18
1.2 Functional Description of Base System ................. 1–19
1.2.1 Base System Components . . . ...................... 1–19
1.2.1.1 Central Processing Unit (CPU) ................... 1–20
1.2.1.2 Console Serial Line Unit (SLU) ................... 1–20
1.2.1.3 Main Memory. . . .............................. 1–20
1.2.1.4 Network Controller ............................ 1–20
1.2.1.5 Embedded DSSI Host Adapter .................... 1–21
1.2.2 Optional Components ............................. 1–21
1.2.2.1 Mass Storage Devices and Controllers . ............. 1–21
1.2.2.2 Mass Storage Subsystems . ...................... 1–22
1.2.2.3 Mass Storage Expanders . . ...................... 1–22
1.2.2.4 Communications Controllers ..................... 1–23
1.2.2.5 Real-Time Controllers .......................... 1–25
1.2.2.6 Printer Interfaces.............................. 1–25
1.2.2.7 Other Available Options . . . ...................... 1–25
1.3 Dual-Host Capability (VMS Systems Only) . ............. 1–25
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