Dell PowerEdge 1750 Troubleshooting Guide download pdf (Page 9)

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Figure B-6. USB Connector Pin Numbers

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Table B-5.USBConnectorPinAssignments

RAC Ethernet Connector

The system's optional RAC circuitry is designed to provide remote access capabilities for the system. It is designed specifically to work with systems

management software. FigureB-7 illustrates the pin numbers for the RAC Ethernet connector and TableB-6 defines the pin assignments for the connector.

Figure B-7. RAC Ethernet Connector

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Table B-6.RACEthernetConnectorPinAssignments

Integrated NIC Connector

The system's integrated NIC functions as a separate network expansion card while providing fast communication between servers and workstations.

FigureB-8 illustrates the pin numbers for the NIC connector and TableB-7 defines the pin assignments for the connector.

Figure B-8. NIC Connector

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NOTICE: Do not attach a USB device or a combination of USB devices that draw a maximum current of more than 500 mA per channel or +5 V. Attaching

devices that exceed this threshold may cause the USB connectors to shut down. See the documentation that accompanied the USB devices for their

maximum current ratings.

Signal

I/O

Definition

Vcc

N/A

Supply voltage

DATA–

I/O

Data (–)

DATA+

I/O

Data (+)

GND

N/A

Signal ground

Signal

I/O

Definition

TD+

Data out (+)

TD–

Data out (–)

RD+

Data in (+)

N/A

No connection

N/A

No connection

RD–

Data in (–)

N/A

No connection

N/A

No connection

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