Appendix a networking connection, A.1 switch‘s rj-45 pin assignments, A.2 rj-45 cable pin assignment – PLANET FST-81x Series User Manual
Page 19: Witch, Rj-45, Ssignments, Cable pin assignment
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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 assignment
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:
Figure A-1: Straight-Through and Crossover Cable
Please make sure your connected cables are with same pin assignment and color as above picture before deploying the
cables into your network.