Antaira Technologies - Industrial Ethernet Switches
LNX-0802C-SFP Series User Manual V1.0
6
2.5 Ethernet Ports
RJ-45 Ports
RJ-45 Ports (Auto MDI/MDIX)
: The RJ-45 ports (LAN 1~6) are auto-sensing for 10Base-T or
100Base-Tx device connections. The Gigabit combo RJ-45 ports (LAN G1~G2) are auto-sensing
for 10Base-T, 100Base-Tx, and 1000Base-T device 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 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 cabling, pins 1, 2, 3, and 6 are at one end of the cable
and 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
Table 2.3 - Ethernet Signal Pin Outs
