Asus PU-DLS User Manual

Page 47

ASUS PU-DLS motherboard user guide

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5. Two 68-pin Ultra320 SCSI Connectors (U54, U69)

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 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 multi-mode 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.

PU-DLS

PU-DLS SCSI Connection Example

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

68-pin Female
Terminator

Internal SCSI Devices (up to 15 devices)

Channel B

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

68-pin Female
Terminator

Internal SCSI Devices (up to 15 devices)

Channel A

PU-DLS

PU-DLS Onboard SCSI Connectors

u69

68-Pin Ultra320 SCSI Connector

u54

68-Pin Ultra320 SCSI Connector