11.Two 68-pin Ultra320 SCSI Connectors (SCSI-A, SCSI-B)

This motherboard has two 68-Pin Ultra320 SCSI connectors; one for each of the two channels. Each channel can support a maximum of 15 devices as specified by Ultra320 standards.

SCSI-A

 

 

 

 

 

 

 

 

1 35

 

 

 

68-Pin Ultra160/

Ultra2-Wide SCSI Connector

SCSI-B

68-Pin Ultra160/

Ultra2-Wide SCSI Connector

34 1

PR-DLS533

68

35

34 68

PR-DLS533 Onboard SCSI Connectors

SCSI Connection Notes

This motherboard has two 68-Pin Ultra320 SCSI connectors; one for each of the two channels.

The onboard SCSI chipset incorporates an advanced multimode I/O cell that supports both single-ended (SE), Ultra2, Ultra160, and Ultra320 devices. With Ultra320 devices, the SCSI bus platform performs at full Ultra320 speeds (up to 320MB/s) and extended cabling 12m (or 25m in a point-to-point configuration). When an SE device is attached, the bus defaults to an SE speed and 1.5m cable length.

Connect SCSI devices as shown. Each channel should have only one type of SCSI standard (e.g. Ultra320, Ultra160, Ultra2, Ultra-Wide). Mixing SCSI devices on the same channel decreases performance of the slower device.

68-pin Internal SCSI Cable (Twisted-Pair Ribbon)

Channel B

68-pin Female

Internal SCSI Devices (up to 15 devices)

Terminator

PR-DLS533

68-pin Internal SCSI Cable (Twisted-Pair Ribbon)

Channel A

68-pin Female

Terminator

Internal SCSI Devices (up to 15 devices)

PR-DLS533 SCSI Connection Example

4-14

Chapter 4: Motherboard information