Dell PowerEdge 1800 - Manual (Page 150)

150
I/O Ports and Connectors
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USB Connector
The system’s USB connector supports 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-6 illustrates the pin numbers for the USB connector and Table B-6 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-6. USB Connector Pin Numbers
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-7 illustrates the pin numbers for the
NIC connector and Table B-7 defines the pin assignments for the connector.
12 DDC data out O Monitor detect data
13 HSYNC O Horizontal synchronization
14 VSYNC O Vertical synchronization
15 NC N/A No connection
Table B-6. 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
Table B-5. Video Connector Pin Assignments (continued)
Pin Signal I/O Definition