Dell PowerEdge 6400 - Manual (Page 40)

USB Connectors
Your system contains two Universal Serial Bus (USB) connectors for attaching USB-compliant devices. USB devices are typically peripherals such
as mice, printers, keyboards, and computer speakers.
NOTICE: Do not attach a USB device or a combination of USB devices that draw a maximum current over 500 milliamperes (mA) per
channel or +5 volts (V). Attaching devices that exceed this threshold may cause the USB ports to shut down. See the documentation
that came with the USB devices for their maximum current ratings.
If you reconfigure your hardware, you may need pin number and signal information for the USB connectors. Figure 7 illustrates the USB connector,
and
Table 6 defines the pin assignments and interface signals for the USB connector.
Figure 7. USB Connector
Table 6. Pin Assignments for the USB Connector
Integrated NIC Connector
Your system has an integrated 10/100-megabit-per-second (Mbps) network interface controller (NIC). The NIC provides all the functions of a
separate network expansion card and supports both the 10BASE-T and 100BASE-TX Ethernet standards.
Network Cable Requirements
Your computer's RJ45 NIC connector is designed for attaching an unshielded twisted pair (UTP) Ethernet cable equipped with standard RJ45-
compatible plugs. Press one end of the UTP cable into the NIC connector until the plug snaps securely into place. Connect the other end of the
cable to an RJ45 jack wall plate or to an RJ45 port on a UTP concentrator or hub, depending on your network configuration. Observe the following
cabling restrictions for 10BASE-T and 100BASE-TX networks.
NOTICE: To avoid line interference, voice and data lines must be in separate sheaths.
l For 10BASE-T networks, use Category 3 or greater wiring and connectors.
l For 100BASE-TX networks, use Category 5 or greater wiring and connectors.
l
The maximum cable run length (from a workstation to a concentrator) is 100 meters (m) (328 feet [ft]).
l For 10BASE-T networks, the maximum number of daisy-chained concentrators on one network segment is four.
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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