Integrated network adapter connector, Network cable requirements, Table b – Dell PowerEdge 750 User Manual
Page 9: Defines the pin assignments for the connector

Table B-5. USB Connector Pin Assignments
Integrated Network Adapter Connector
The system's integrated network adapters function as separate network expansion cards while providing fast communication between servers and
workstations.
illustrates the pin numbers for the network connector and
defines the pin assignments for the connector.
Figure B-6. Network Adapter Connector
Table B-6. Network Adapter Connector Pin Assignments
Network Cable Requirements
The network adapters support a UTP Ethernet cable equipped with a standard RJ-45-compatible plug. Observe the following cabling restrictions.
l
Use Category 5 or greater wiring and connectors.
l
Do not exceed a cable run length (from a workstation to a hub) of 100 m (328 ft).
For detailed guidelines about the operation of a network, see "Systems Considerations of Multi-Segment Networks" in the IEEE 802.3 standard.
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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
Pin Signal I/O Definition
1
TD+
O
Data out (+)
2
TD–
O
Data out (–)
3
RD+
I
Data in (+)
4
NC
N/A No connection
5
NC
N/A No connection
6
RD–
I
Data in (–)
7
NC
N/A No connection
8
NC
N/A No connection
NOTICE:
To avoid line interference, voice and data lines must be in separate sheaths.