Chapter 7 rj-45 pin assignment, 1 straight-through/crossover cable – Planet Technology FNSW-1601 User Manual
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CHAPTER 7 RJ-45 PIN ASSIGNMENT
Pin
Numbered Ports
(MDI-X port)
Uplink Port (MDI-II port)
1
Input Receive Data +
Output Transmit Data+
2
Input Receive Data -
Output Transmit Data-
3
Output Transmit Data+ Input Receive Data +
6
Output Transmit Data- Input Receive Data -
4,5,7,8 Not used
Not used
Schematics for both straight and crossover twisted-pair cable
are shown below. (Note that crossover cable is only required if
you cascade hubs via the RJ-45 station ports; i.e. the Uplink
port is not used.)
7.1 Straight-Through/Crossover Cable
The pin assignment of the cables both ends should be as be-
low:
Straight-through Crossover
Hub (MDI-X)
Adapter(MDI-II)
Hub (MDI-X)
Hub (MDI-X)
Pin 1
Pin 1
Pin 1
Pin 3
Pin 2
Pin 2
Pin 2
Pin 6
Pin 3
Pin 3
Pin 3
Pin 1
Pin 6
Pin 6
Pin 6
Pin 2
2
1
3
6
1
2
3
6
2 1
3
6