Appendix A. Rj-45 Pin Specifications - IBM BladeCenter Installation And User Manual

Appendix A. RJ-45 pin specifications

When you connect the switch to another switch, a bridge, or a hub, a normal cable
is necessary. Review the documentation that comes with these products for
matching cable pin assignments.
The following illustration and table show the standard RJ-45 receptacle/connector
and their corresponding pin assignments for the switch-to-network adapter
connection, and the normal cable for the switch-to-switch/hub/bridge connection.
The four external Ethernet ports of this switch module are auto-configuring and do
not require straight-through or crossover cables.
© Copyright IBM Corp. 2002
Table 6. Standard Category 3 cable, RJ-45 pin assignment
RJ-45 Connector pin assignment
Contact (pin number)
1
2
3
4
5
6
7
8
Media direct interface signal
Tx + (transmit)
Tx - (transmit)
Rx + (receive)
Not used
Not used
Rx - (receive)
Not used
Not used
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