D-Link DES-1008M manual 100M Indicator, Link/Act Indicator, FDX/Col Indicator

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DES-1008M User’s Guide

100M Indicator

This LED lights green when the port is operating at 100Mbps. If the port is operating at 10Mbps, the speed indicator remains dark.

Link/Act Indicator

This LED lights green when the port is connected to a powered-on Ethernet/Fast Ethernet station. It blinks off briefly when information is transmitted or received on the port. Please note that when the BNC module is connected, the Link LED is not lit.

FDX/Col Indicator

This LED lights green when the port is operating in 10/100BASE-T full-duplex mode. When the Switch is not in full-duplex mode, the indicator remains dark. If there is data collision on the segment connected to the respective port, the indicator briefly blinks amber. Packet collisions are not uncommon, and occur when two or more devices attempt to transmit data simultaneously on a network. When a collision occurs, devices pause then re-transmit after a somewhat random wait period. Because wait periods vary among devices, successive collisions become increasingly improbable.

If the port connects to another switch or hub, collision indicators of these devices would indicate the same collision, since collisions span an entire local area network.

The BNC port module also provides an additional LED indicator for reporting on the status of the ports. For information about these indicators, see Appendix C, Slide-in Port Modules.

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Unpacking and Component Identification

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Contents DES-1008M Flex-Media Ethernet Switch User’s Guide Wichtige Sicherheitshinweise Limited Warranty Link Offices for Registration and Warranty Service Limitation of Warranties Page Trademarks Page Table of Contents LIDE- in P ORT M Odules About this Guide TermsAbout this Guide Eight User-Configurable Ports Product OverviewBandwidth Boost Easy Installation Powerful PerformanceComprehensive LED Indicators Unpacking Component Identification UnpackingIndicator Panel Identifying External ComponentsPower Indicator Slots 1 to100M Indicator Link/Act IndicatorFDX/Col Indicator AC Power Connector System FanFuse Case Power Switch Installation Site InstallationRack Mounting Installation Port Module Installation Connecting PowerReplacing the Fuse Damaged one. Doing so may cause serious damage to the Switch Making Network Connections Network Design NotesCable Limitations Making Twisted-Pair Attachments Making Thin Coaxial Attachments Making Network Connections DES-1008M User’s Guide Making Fiber Attachments DES-1008M User’s Guide Technical Specifications 100BASE-FXNumber of Ports Safety Cables Connectors 10/100BASE-T Twisted-Pair Cable10BASE2 Thin Coaxial Cable 10BASE-FL/100BASE-FX Fiber- Optic Cable SLIDE-IN Port Modules DES-108TXDES-108C DES-108FL DES-1008M User’s Guide Index Slide-In Port Modules Offices Taiwan Link Taiwan Registration Card