IES-2042PA User’s Manual
ORing Industrial Networking Corp.
10
The IES-2042PA switch support auto MDI/MDI-X operation. You can use a
straight-through cable to connect PC and switch. The following table below shows the
10BASE-T/ 100BASE-TX MDI and MDI-X port pin outs.
MDI/MDI-X pins assignment
Pin Number
MDI port
MDI-X port
1 TD+(transmit)
RD+(receive)
2 TD-(transmit)
RD-(receive)
3 RD+(receive)
TD+(transmit)
4
Not used
Not used
5
Not used
Not used
6 RD-(receive)
TD-(transmit)
7
Not used
Not used
8
Not used
Not used
Note:
“+” and “-” signs represent the polarity of the wires that make up each wire pair.
4.2 SFP
The Switch has fiber optical ports with SFP connectors. The fiber optical ports are in
multi-mode and single-mode with LC connector. Please remember that the TX port of Switch
A should be connected to the RX port of Switch B.
Switch A Switch B
Fiber cord
