Dell PowerEdge 850 User's Guide download pdf (Page 9)

USB Connectors

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 optical drives. FigureB-6 illustrates the pin numbers for the USB connector and TableB-6 defines the pin assignments for the connector.

Figure B-6. USB Connector Pin Numbers

Table B-6. USB Connector Pin Assignments

Integrated NIC Connectors

Each of the system's integrated NICs function as a separate network expansion card while providing fast communication between servers and workstations.

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

Figure B-7. NIC Connector

Table B-7. NIC Connector Pin Assignments

Network Cable Requirements

The NIC supports a UTP Ethernet cable equipped with a standard RJ45-compatible plug.

Observe the following cabling restrictions.

HSYNC

Horizontal synchronization

VSYNC

Vertical synchronization

N/A

No connection

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

Data in

+DATA

Data out

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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Dell PowerEdge 850 User's Guide Page 9

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