| 100M | | On | FX port’s 100 Mbps is active |
| GREEN | | |
| Blinking | Data is being transmitted at 100 Mbps |
| (FX) |
| | | |
| | | Off | 100BaseFX port is inactive |
| | | | |
Auto MDI/MDI-X Connection
The Auto MDI/MDI-X function allows users to connect MOXA
EDS-508’s 10/100BaseTX ports to any kind of Ethernet device, without paying attention to the type of Ethernet cable being used for the connection. To understand the meaning of this statement, you simply need to remember that there are two types of Ethernet ports, and two types of Ethernet cables. See the 10/100BaseTX Ethernet Port Connection section from Chapter 3 for detailed Pinout and Cable Wiring diagrams. In this section, we give a short primer of the terminology, and indicate which cable should be used to connect which types of ports.
There are two types of Ethernet port in use. The first type is called an MDI (Medium Dependant Interface) port, and is what you find on your PC’s NIC (Network Interface Card). The second type is called an MDI-X (Medium Dependant Interface, Crossover) port, and is the type of port found in a standard HUB or switch. For this reason, we often refer to an MDI port as being NIC-type, and an MDI-X port as being HUB/Switch-type.
There are also two types of Ethernet cable in use. The first type is a straight-throughcable, and the second type is a cross-overcable. The general connection rules are:
??A straight -throughcable is used to connect dislike ports: MDI ? MDI-X.
4-4 MOXA EtherDevice Switch Hardware Installation Guide
