PLANET FT-807 User Manual
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APPENDEX A
Appendix A: RJ-45 pin assignment and
cable system
A.1 10/100Mbps, 10/100Base-TX
When connecting your 10/100Mbps Ethernet Switch to another
switch, a bridge or a hub, a straight or crossover cable is
necessary. Each port of the Switch supports auto-MDI/MDI-X
detection. That means you can directly connect the Switch to any
Ethernet devices without making a crossover cable. The following
table and diagram show the standard RJ-45 receptacle/ connector
and their pin assignments:
RJ-45 Connector pin assignment
Con-
tact
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
The standard cable, RJ-45 pin assignment
The standard RJ-45 receptacle/connector