6
Ports
RJ-45 ports
The UTP/STP ports will auto-sense for 10Base-T/100Base-TX connections (Fast
Ethernet) or 10Base-T, 100Base-TX, or 1000Base-T connections (Gigabit Ethernet).
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 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 table below shows the 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-)