3.2.4LSI22915A Host Adapter

The LSI22915A PCI to Dual Channel Ultra160 SCSI Host Adapter (Figure 3.4) provides two separate Ultra160 SCSI channels. Both channel A and channel B of the LSI22915A support LVD and SE as a SCSI solution for your computer. The SCSI interface is made through connector J1 or J3 for channel A and J4 or J7 for channel B.

The LSI22915A has these features:

•Two separate Ultra160 SCSI channels

•Four connectors

–Two external 68-pin VHDCI connections

–Two internal 68-pin high density connections

•LVD/SE termination for both channels

Figure 3.4 LSI22915A Mechanical Drawing

B

 

HDR1

A

 

J3 Channel A

J4 Channel B

HDR2

Ultra160 SCSI LVD/SE

Ultra160 SCSI LVD/SE

Activity

J7

 

LED

 

HDR5

Channel B

 

Ultra160 SCSI LVD/SE

 

 

 

 

HDR3

J1

LSI53C1010

 

Channel A

 

 

Ultra160 SCSI LVD/SE

 

 

J6 - PCI

Note:

•J6: PCI 64-bit, universal type board edge connector.

•J3 and J4: 68-pin high density shielded right-angle internal connectors.

•J1 and J7: 68-pin VHDCI shielded right-angle external connector.

•HDR1 and HDR2: Remote Activity Indicator Connection for channel A and channel B.

•HDR3 and HDR5: Disable Termination for channel A and channel B

•Subsystem Vendor ID is 1000; Subsystem ID is 1010.

•Refer to Figure 3.5 (ITI6200U3LP) for LVD Status Indicator information.

3-6

Ultra160 SCSI to PCI Host Adapter Characteristics