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APPENDIX A: NETWORKING CONNECTION
A.1 Switch’s RJ-45 Pin Assignments
10/100Mbps, 10/100Base-TX
RJ-45 Connector pin assignment
Contact
MDI
Media Dependant Interface
MDI-X
Media Dependant Interface
-Cross
1
Tx + (transmit)
Rx + (receive)
2
Tx - (transmit)
Rx - (receive)
3
Rx + (receive)
Tx + (transmit)
4, 5
Not used
6
Rx - (receive)
Tx - (transmit)
7, 8
Not used
A.2 RJ-45 Cable Pin Assignments
The standard RJ-45 receptacle/connector
There are 8 wires on a standard UTP/STP cable and each wire is color-
coded. The following shows the pin allocation and color of straight cable
and crossover cable connection: