User manual

Appendix A Pin Assignments & Wiring
A.1 RJ-45 Port
It is suggested to adopt ELA/TIA as the wiring of the RJ-45.
Figure A.1: RJ-45 Pin Assignments
RJ-45 Pin Assignments
Pin Number Function
1 TX+
2 TX-
3 RX+
6 RX-
Note “+” and “-” signs represent the polarity of the wires that make up each wire pair.
All ports on this industrial switch support automatic MDI/MDI-X operation, you can use
straight-through cables (See the figure below) for all network connections to PCs or
servers, or to other switches or hubs. In straight-through cable, pins 1, 2, 3, and 6, at
one end of the cable, are connected straight through to pins 1, 2, 3 and 6 at the other
end of the cable. The 10BASE-T/100BASE-TX MDI and MDI-X port pinouts are
described below.
EKI-2548I_Manual_ed2 64