7
Ports
RJ-45 ports
There are 10/100/1000Mbps ports for 10Base-T, 100Base-TX or 1000Base-T devices
connection which UTP ports will auto-sense. Auto MDI/MDIX means that the switch can
connect to another switch or workstation without changing straight through or crossover
cabling. See the figures below for straight through and crossover cable schematic.
RJ-45 Pin Assignments
Pin Number
Assignment
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, user can use
straight-through cables (See figure below) for all network connections to PCs or servers,
or to other switches/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 table below shows the 10BASE-T/100BASE-TX/1000BASE-T MDI and MDI-X port
pin outs.
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-)
