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1.2 SCSI Mode
Figure 1.1
SCSI/SAF-TE Enclosure Implementation
SCSI or PCI RAID
Host Adapter
1-2
The SYM53C040 uses the SCSI bus to report system information such
as enclosure temperature, power supply status, and disk slot status to
the host SCSI controller. It also responds to host SCSI controller
commands by generating control outputs to enable and disable disk
slots, drive indicator displays, or perform other system tasks. The
SYM53C040 supports Low Voltage Differential (LVD) access as well as
Single-Ended (SE) SCSI access without the need for external
transceivers.
Figure 1.1
with the SYM53C040.
SYM53C040
Enclosures Services
LVD SCSI
LVD
SAF-TE
Isolation and Conversion
Introduction
shows a typical SCSI enclosure implementation
SCSI Drive Enclosure
SAF-TE
SE
SE
SYM53C141
Primary
Power 1
Drive
Drive
Primary
Power N
Drive
Drive
Drive
Fan 1
Fan N
Drive
Drive
Drive
Temp
Sensor
Drive
Drive
Door
Lock
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