5 . Hard disk activity LED connector (4-pin HDLED1)

This connector supplies power to the hard disk activity LED. The read or write activities of any device connected to the SCSI connectors or the SATA connectors cause this LED to light up.

PVL-D/1U/SCSI

HDLED1

1

SCSI_ACTLED+ SCSI_ACTLED- SCSI_ACTLED- SCSI_ACTLED+

PVL-D/1U/SCSI SCSI/SATA card activity LED connector

6 . USB connector (10-1 pin USB34)

This connector is for USB 2.0 ports. Connect to front USB connector. This USB connector complies with USB 2.0 specification that supports up to 480 Mbps connection speed.

PVL-D/1U/SCSI

PVL-D/1U/SCSI USB connector

GND USB PortA(+)

USB PortA(-)

Power

USB34

 

1

 

 

NC GND PortB(+)

PortB(-)

Power

USB

USB

 

The USB port module is purchased separately.

4 - 12

Chapter 4: Motherboard information