D-Link DES-3225G - Manual (Page 163)

24-port NWay Ethernet Switch User’s Guide
RJ-45 Pin Specification 153
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
Table B-1. The standard Category 3 cable, RJ-45 pin assignment
The following shows straight cable and crossover cable connection:
Figure B-2. Straight cable for Switch (uplink MDI-II port) to switch/Hub or other devices connection
Figure B-3. Crossover cable for Switch (MDI-X port) to switch/hub or other network devices (MDI-X port)
connection