Kingston Technology KNS800/WG, KNS500/WG manual Design Features

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Design Features

Design Features

Switching Function

The Fast EtheRx Switch is basically designed to bridge Standard 10BASE-T Ethernet networks to 100BASE-TX Fast Ethernet networks and to segment 10Mbps or 100Mbps network segments.

Auto-Negotiation

Auto-Negotiation provides the means of automatically establishing a link by detecting the link capabilities of the connected device on the network to select the best operational mode available (i.e. 100BASE-TX/10BASE-T selection, half- / full-duplex mode operation, etc.)

Full-Duplex

Full-Duplex transmission means that dedicated inbound and outbound channels are established for bi-directional transmission of data. This allows the collision detection mechanism (CSMA/CD) to be by-passed, thus decreasing transmission delay normally caused by listening, collisions, and packet resends when operating in half-duplex mode.

Store-and-Forward Switching

The Fast EtheRx Switch uses a packet-forwarding method called Store-and- Forward, which minimizes the re-transmission of faulty data packets. This means that the Fast EtheRx Switch can store the incoming frame in an internal buffer and check the packet for errors before sending it out to the destination port. If the frame does contain errors, it will be discarded and then retransmitted.

Flow Control

In half-duplex mode the Fast EtheRx Switch implements a collision-based backpressure flow control mechanism that reduces the risk of data loss at congested ports. This is accomplished by forcing a collision with the data frames on all ports once the free-buffer queue has reached the pre-set minimum.

In full-duplex mode the Fast EtheRx Switch implements the IEEE 802.3x flow control mechanism. This is accomplished by sending a PAUSE packet on a port when the number of buffers allocated to this port exceeds the pre-set minimum.

Kingston Technology Company

KNS800/WG User’s Guide – Rev.B01

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Contents 10/100TX Workgroup Part No -001.B01 10/100TX Workgroup Fast Ethernet Switch User’s GuideKingston Technology’s Fast EtheRx Port & 8-Port Able Ontents Appendix a Introduction Model Types Model KNS500/WGSpecial Features Package ContentsDesign Features Hardware Installation Power LEDFront Panel 100TX Speed Detection LEDFull Duplex and Collision LED Cascade SwitchLink / Activity LED Using a Straight-Through Cable 10/100TX UTP Ports Power ConnectorRear Panel Appendices Appendix a Pin Assignments UTP Port Pin AssignmentsUTP Cable Type UTP Cable WiringAppendix B Cabling Guidelines UTP Cable Wiring Standards T568A T568BUTP Cable Rating Codes Terms You Should Be Familiar WithSpecifications Appendix CFast EtheRx Model KNS800/WG Appendix D Frequently Asked Questions What is a switch and what does it do?Category 5 Compliance vs. Category 5 Performance? Appendix E Warranties and Notices Limited Warranty StatementDuration of Warranty Disclaimers Warranty Claim RequirementsFree Technical Support Tick Certification C. CertificationCE Notice