User Manual

Antaira Industrial Ethernet Switches

LMX-0601G-SFP Series User Manual V1.1

2.5 Ethernet Ports



RJ-45 Ports

RJ-45 Ports (Auto MDI/MDIX): The RJ-45 ports are auto-sensing for 10Base-T, 100Base-TX,

and 1000Base-T connections. Auto MDI/MDIX means that the switch can connect to another

switch or workstation without changing the straight-through or crossover cabling. See the figures

as below for straight-through and crossover cabling schematics.



RJ-45 Pin Assignments (Table 2.2)

Pin Number Assignment

1 Rx+

2 Rx-

3 Tx+

6 Tx-

All ports on this industrial Ethernet switch support automatic MDI/MDI-X operation. Users can

use straight-through cables (see figure below) for all network connections to PCs, servers, other

switches or hubs. With 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 table below

(Table 2.3) shows the 10BASE-T/100BASE-TX/1000BASE-T MDI and MDI-X port pin outs.

Note

“+” and “-” signs represent the polarity of the wires that make up each wire pair.

Pin MDI-X Signal Name MDI Signal Name

1 Receive Data plus (RD+) Transmit Data plus (TD+)

2 Receive Data minus (RD-) Transmit Data minus (TD-)

3 Transmit Data plus (TD+) Receive Data plus (RD+)

6 Transmit Data minus (TD-) Receive Data minus (RD-)

Table 2.2 - RJ45 Pin Assignments