LSI Logic Corporation
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Appendix B
Ethernet Connector
The 8-pin RJ-45 connector for 10/100/1000 Mb/sec Ethernet is wired as
shown:
Figure 9: 8-Pin RJ-45 Connector (Front)
With the connection pins assigned as shown:
Contact
10Base-T Signal
100Base-TX Signal 1000Base-T Signal
1
TD+ (Transmit Data)
TD+ (Transmit
Data)
BI_DA+ (Bidi Data)
2
TD- (Transmit Data) TD- (Transmit Data) BI_DA- (Bidi Data)
3
RD+ (Receive Data) RD+ (Receive Data) BI_DB+ (Bidi Data)
4
Not used
Not used
BI_DC+ (Bidi Data)
5
Not used
Not used
BI_DC- (Bidi Data)
6
RD- (Receive Data) RD- (Receive Data) BI_DB- (Bidi Data)
7
Not Used
Not Used
BI_DD+ (Bidi Data)
8
Not Used
Not Used
BI_DD- (Bidi Data)
Table 12: 8-Pin RJ-45 Connector Pin Assignments
Network Cabling Requirements
In order for your network to operate properly, you must use a category of
network cabling that is appropriate for the data rate of the channel. For
10Mb/s operation, Category 3, or 5 cable is appropriate. When operating in
100/1000Mb/s or 100/1000Mb/s Full Duplex, a Category 5 cable should be
used.
The maximum cable segment length supported at 100/1000Mb/sec speed, on
Category 5 cable is 100M. Any single cable segment (adapter to adapter or
adapter to network hub) must be within the 100M length requirement.
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