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Figure 1.2 – Avago Technologies LSI53C120 User Manual

Page 17

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Application Examples

1-5

Figure 1.2

SCSI Extender Application (SE to SE Mode of Operation)

Figure 1.3

illustrates both SE to SE, and SE to HVD modes of the

LSI53C120 to create a redundant remote storage configuration.

Figure 1.3

SCSI Extender or Converter Application (SE to HVD Mode of Operation)

LSI53C120

Single-ended

(1.5 meters)

Device 1

Ultra SCSI Drive Box

Disk Subsystem

Ultra SCSI
Host Adapter

LSI53C8xx

Ultra SCSI Controller

Device 0

Single-ended (3 meters)

Device 5

LSI53C120

Single-ended

(1.5 meters)

Device 6

Ultra SCSI Drive Box

Device 10

LSI53C120

Single-ended

(1.5 meters)

Device 11

Ultra SCSI Drive Box

Device 15

Terminator

LSI53C120

Single-ended

(1.5 meters)

Device 12

Ultra SCSI Remote Storage Box

Device 14

Single-ended (3 meters)

Differential (25 meters)

Dual Channel Ultra SCSI Host Adapter

LSI53C876

Dual Channel

Ultra SCSI

Controller

Devices 0 & 1

Differential

Transceivers

LSI53C120

Single-ended

(1.5 meters)

Device 7

Device 11

Ultra SCSI Drive Box

LSI53C120

Differential

Transceivers

LSI53C120

Single-ended

(1.5 meters)

Device 2

Device 6

Ultra SCSI Drive Box

LSI53C120

Differential

Transceivers

Differential

Transceivers

Terminator