USB Connector

The system’s USB connectors support USB-compliant peripherals such as keyboards, mice, and printers and may also support USB-compliant devices such as diskette drives and CD drives. Figure B-5 illustrates the pin numbers for the USB connector and Table B-5 defines the pin assignments for the connector.

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.

Figure B-5. USB Connector Pin Numbers

Table B-5. USB Connector Pin Assignments

Pin

Signal

I/O

Definition

 

 

 

 

1

Vcc

N/A

Supply voltage

2

DATA

I

Data in

3

+DATA

O

Data out

4

GND

N/A

Signal ground

 

 

 

 

Integrated Network Adapter Connector

The system’s integrated network adapters function as separate network expansion cards while providing fast communication between servers and workstations. Figure B-6 illustrates the pin numbers for the network connector and Table B-6 defines the pin assignments for the connector.

Figure B-6. Network Adapter Connector

link indicator

 

activity indicator

 

 

 

 

 

 

 

 

 

I/O Connectors

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Dell 745N manual USB Connector, Integrated Network Adapter Connector