Microsens MS655100PX-48 - Manual (Page 9)

6
Ports
 RJ-45 ports
The UTP (RJ-45) Fast Ethernet ports will auto-sense for 10Base-T or 100Base-TX
connections. Auto MDI/MDIX means the switch can connect to another switch or
workstation without changing straight through or crossover cabling. See the tables and
figures below for straight-through and crossover cable schemes.
 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, users can use
straight-through cables (see the figure as follows) for all network connections to PCs,
servers, or to other switches/hubs. On the 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. The table below shows the 10BASE-T/100BASE-TX MDI and MDI-X port pinouts.
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-)