Dual Speed Functionality and Switching
MOXA EDS-508’s 10/100 Mbps RJ45 switched ports can be configured for 10 Mbps operation, 100 Mbps operation, or to auto-negotiate with the connected device for the fastest data transmission rate supported by both devices.
All models of MOXA EDS-508 are plug-and-play devices, so that software configuration is not required at installation, or during maintenance. The half/full duplex mode for the switched RJ45 ports is user dependent and changes (by auto-negotiation) to full or half duplex, depending on which transmission speed is supported by the attached device.
Switching, Filtering, and Forwarding
Each time a packet arrives at one of the switched ports, a decision is made to either filter or forward the packet. Packets with source and destination addresses belonging to the same port segment will be filtered, constraining those packets to one port, and relieving the rest of the network from the need to process them. A packet with destination address on another port segment will be forwarded to the appropriate port, and will not be sent to the other ports where it is not needed. Packets that are used in maintaining the operation of the network (such as the occasional multi-cast packet) are forwarded to all ports.
MOXA EDS-508 operates in the store -and-forward switching mode, which eliminates bad packets and enables peak performance to be achieved when there is heavy traffic on the network.
4-6 MOXA EtherDevice Switch Hardware Installation Guide
