User manual D-LINK DES-815

[. . . ] 02 (Aug. , 1997) 6DES815. . . 02 Printed In Taiwan RECYCLABLE Wichtige Sicherheitshinweise 1. Um eine Beschädigung des Gerätes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom Hersteller zugelassen sind. Verwenden Sie nur sichere Standorte und beachten Sie die Aufstellhinweise des Herstellers. Die Belüftungsöffnungen dienen zur Luftzirkulation die das Gerät vor Überhitzung schützt. [. . . ] Switching helps reduce the congestion problems inherent in the contention-oriented CSMA/CD protocol, thereby improving network response during high utilization periods. Also, currently popular distributed client/server applications often require higher bandwidth and tighter client-to-server integration. Legacy 10Mbps Ethernet often is unable to provide a sufficiently sophisticated platform for users to be able to take full advantage of such client/server applications. Fast Ethernet switching not only satisfies both technical and business needs, it also preserves the current investment in the huge 10BASE-T Ethernet installed base. Compatibility with 10Mbps Ethernet ensures that users will be able to migrate to Fast Ethernet at a pace appropriate to their installation and needs. 10/100 Switching Technology An integral extension of Fast Ethernet, 10/100 switching provides not only a 100Mbps high-speed connection for carrying aggregated 10Mbps traffic, it also handles the necessary conversion of MAC between 10BASE-T and 100BASE-TX. Combining Fast Ethernet and switching technologies provides both bandwidth for local workgroups and a high-speed link to carry local traffic elsewhere in the network. 6 Overview 10/100 Fast Ethernet Switch User's Guide Product Features The 10/100 Fast Ethernet Switch has the following key features: · · · · · · Ports: 12 10Mbps, three 10/100Mbps. High-speed uplink port for connecting to a higher tier switch or other device. Dynamic buffer allocation to allow network load balance and prevent packet loss due to congestion. AUI and MII external transceiver connectors provide flexibility in choice of network media. Full-duplex and half-duplex capability on all ports with each user-configurable through the Duplex Mode Switch on the rear panel. Flexibility of application: from segmentation of a large LAN to client-server maximization to dedicated connections for highpriority single users. Support for IEEE 802. 3, 10BASE-2, 10BASE-T, IEEE 802. 3u and 100BASE-TX standards. xtensive LED indicators to facilitate troubleshooting and monitoring of the product's operating status. Auto-selected fast store-and-forward and fragment-free cutthrough passing schemes provide low latency. Compatibility with standard Ethernet applications, internetworking systems and client-side adapters to minimize infrastructure changes and costs. · · · · · Overview 7 Packing List Unpack the 10/100 Fast Ethernet Switch shipping carton and check for the listed items below. If any items are missing or damaged, notify your authorized reseller immediately. · · · · · The 10/100 Fast Ethernet Switch This User's Guide An AC Power Cord Two Rack Mount Brackets and screws Four adhesive-backed rubber feet Front Panel The 10/100 Fast Ethernet Switch front panel includes network connectors and LED indicators for ease-of-use. Figure 1 10/100 Fast Ethernet Switch Front Panel Ports The product comes with twisted-pair ports. These ports can be used to connect to individual stations in need of faster access, to 8 Overview 10/100 Fast Ethernet Switch User's Guide segment heavily utilized LANs, and/or to provide higher bandwidth access to a key server in a client-server environment. 10Mbps Ports The 10Mbps twisted-pair ports are standard RJ-45 connectors for use with unshielded or shielded twisted-pair (UTP/STP) wiring. The 10Mbps ports operate at an user-selectable effective speed of 10Mbps for half-duplex mode or 20Mbps for full-duplex mode. In either mode, the twisted-pair connector can operate over 100 meters of Category 3, 4, or 5 UTP/STP cable. Possible uses for the 10Mbps switch ports: · · Segment an existing LAN to improve bandwidth utilization. Connect single users either to provide power users with greater access and thus speed, or multiple users for high bandwidth access to a shared network server. [. . . ] To set port 1, port 2, or the MII connector to auto duplex mode detect, set the corresponding switch down. Figure 7 Setting the Duplex Mode Network Configuration Examples This section provides sample configurations showing ways you might use the 10/100 Fast Ethernet Switch. Installation 21 Fast Ethernet Server Connection The 10/100 Fast Ethernet Switch is an ideal device for connecting a dedicated server via a 100Mbps line to a 10Mbps network. Increasing the bandwidth speed of a server connection can provide significant improvements in network performance. Figure 8 Fast Ethernet Connection for a Server 22 Installation 10/100 Fast Ethernet Switch User's Guide LAN Microsegmentation Perhaps the principal purpose for the 10/100 Fast Ethernet Switch is to microsegment an existing LAN to improve network latency rates and increase overall performance. The 100Mbps ports on the switch can be used to connect those segments which require greater throughput. Figure 9 Microsegmenting a LAN and Adding 100Mbps Segments Installation 23 10/100 Fast Ethernet Switch User's Guide A 4 SPECIFICATIONS This appendix lists the technical specifications for the device. Standards Compliance 100Mbps (100BASE-TX) 10Mbps (10BASE-T) Performance 10BASE-2, 10BASE-T, IEEE 802. 3, 100BASE-TX, IEEE 802. 3u RJ-45, Full or Half Duplex ­ 100/200Mbps RJ-45, Full or Half Duplex ­ 10/20Mbps Filtering Rate: · · 10Mbps Port ­ 14880 pps 100Mbps Port ­ 148800 pps Forwarding Rate: · · LED Indicators Dimensions 10Mbps Port ­ 14880 pps 100Mbps Port ­ 148800 pps Power, AUI, MII, Link/Act, FDX/Col, 100M, System Load Meter 441 x 207 x 45 mm (W x D x H) Specifications 25 Weight Power Input Power Consumption Operating Temperature Humidity Altitude Emissions Safety 3. 0 kg/6. 5 lbs 100 ~ 240 VAC, 50/60Hz, 1A 40 Watt (maximum) 32° ~ 122° F (0° ~ 50° C) 5 ~ 90%, Storage 10, 000 ft (3048 m) FCC part 15 Class A, VCCI-1, CE Mark UL, CSA and TUV/GS 26 Specifications 10/100 Fast Ethernet Switch User's Guide B 5 CONNECTOR PINOUTS This appendix describes the connector pinouts including those for: · · · RJ-45 ports (100BASE-TX and 10BASE-T); AUI transceiver connector; MII transceiver connector. RJ-45 Connectors Figure B-1 RJ-45 Connector The above figure shows the arrangements of the pins, while Table B-1 lists the pinouts. Connector Pinouts 27 Table B-1: RJ-45 Connector Pinouts RJ-45 Connector Pinouts MDI Signal TD+ (Transmit) TD- (Transmit) RD+ (Receive) NC NC RD- (Receive) NC NC Pin 1 2 3 4 5 6 7 8 A sketch for crossover cable pinouts is shown in the following figure. Figure B-2 Crossover Cable AUI Transceiver Connector The following table gives the pinouts for the AUI connector. [. . . ]