Product data

Contents
Safety Notices........................vii
Definitions of Safety Notices ...................vii
Safety Notice for Installing, Relocating, or Servicing............vii
About This Book .......................ix
Numbering Convention .....................ix
Trademarks .........................ix
Related Publications ......................ix
Electrostatic Discharge .....................xi
Chapter 1. Reference Information .................1
SCSI Interface Cards ......................3
Error Logging.........................3
Configurations ........................3
−48 Volt Power Supply (Model DU3 Only) ...............4
Lights and Switches ......................5
Subsystem Lights ......................7
SCSI Interface Card Lights ...................7
Fan-and-Power-Supply Assembly Lights and Switch ...........8
Fan Assembly Light .....................8
Switch Card Assembly Switches .................9
Disk Drive Module Lights ...................13
Parts Locations .......................15
Parts Locations (2104 Model DU3) ................16
Parts Locations (2104 Model TU3) ................17
Connectors .........................18
Back Connectors (2104 Model DU3)................18
Back Connectors (2104 Model TU3)................19
Mainline-Power Connector (220 V ac) ...............20
Mainline-Power Connector (Model DU3, −48 V dc) ...........21
Labels ..........................22
Product Characteristics .....................23
Dimensions and Weight (2104 Model DU3) .............23
Dimensions and Weight (2104 Model TU3) .............23
AC and DC Input-Voltage Requirements ..............23
Environment .......................23
Altitude .........................24
Heat Output (Maximum) ....................24
Disk Drive Acclimation .....................24
Power Sequencing ......................24
SCSI Addresses .......................25
SCSI Bus Configurations and Addresses ...............26
Microcode Maintenance .....................28
Vital Product Data (VPD) ....................29
SCSI Disk Drives ......................29
2104 ..........................29
2104 Service Aids .......................30
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