Moxa Technologies EDS-508 manual Dual Speed Functionality and Switching

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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

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Contents Moxa EtherDeviceTM Switch EDS-508Hardware Installation Guide TrademarksTable of Contents Moxa Internet Services Problem Report Form Return Procedure Introduction Why EDS-508 is ideal for Industrial Control and Automation Package Checklist Optional AccessoriesFeatures Introduction Fault LED Master LED Coupler LED Panel Views of EDS-508Panel Views of EDS-508-MM-SC Panel Views of EDS-508-SS-SC Installing Moxa EtherDeviceTM Switch Mounting Dimensions DIN-Rail Mounting Wall Mounting Optional Step Page Wiring Moxa EtherDeviceTM Switch Wiring Requirements Safety FirstGrounding Moxa EDS-508 Wiring the Relay Contact Wiring the Redundant Power Inputs Wiring the Digital Inputs Communication Connections RS-232 Connection Installing Moxa EtherDevice Switch 10/100BaseTx Ethernet Port Connection 100BaseFx Ethernet Port Connection SC-Port Pinouts SC-Port to SC-Port Cable Wiring Page Hardware Overview Redundant Power Inputs Relay ContactsLED Indicators PWR1Auto MDI/MDI-X Connection 100MFiber Ports Dual Speed Functionality and Switching Switching, Filtering, and ForwardingSwitching and Address Learning Auto-Negotiation and Speed SensingSpecifications TechnologyOptical Fiber Environment Service Information Moxa Internet Services Following services are providedProblem Report Form Moxa EDS-508 SeriesReturn Procedure
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