10/100 Fast Ethernet Switch User’s Guide
32
RJ-45 Pin Specification
RJ-45 Connector pin assignment
Contact
Media Direct Interface Signal
1
Tx + (transmit)
2
Tx - (transmit)
3
Rx + (receive)
4
Not used
5
Not used
6
Rx - (receive)
7
Not used
8
Not used
The standard Category 3 cable, RJ-45 pin assignments
The following shows straight cable and crossover cable connection:
Straight cable for Switch (uplink MDI-II port) to switch/Hub or
other devices connection
Crossover cable for Switch (MDI-X port) to switch/hub or other network
devices (MDI-X port) connection
