User manual D-LINK DES-1004

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[. . . ] DES-1004/ DES-1008 10/100 Fast Ethernet Switch User's Guide Rev. 01 (May, 1997) 6DES1008. . 01 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. [. . . ] Switching is a cost-effective way of increasing the total network capacity available to users on a local area network. A switch increases capacity and decreases network loading by making it possible for a local area network to be divided into different segments which don't compete with each other for network transmission capacity, giving a decreased load on each. The switch acts as a high-speed selective bridge between the individual segments. Traffic that needs to go from one segment to another is automatically forwarded by the switch, without interfering with any other segments. This allows the total network capacity to be multiplied, while still maintaining the same network cabling and adapter cards. For Fast Ethernet networks, a switch is an effective way of eliminating problems of chaining hubs beyond the "two-repeater limit. " A switch can be used to split parts of the network into different collision domains, making it possible to expand your Fast Ethernet network beyond the 205 meter network diameter limit for 100BASE-TX networks. Switches supporting both traditional 10Mbps Ethernet and 100Mbps Fast Ethernet are also ideal for bridging between existing 10Mbps networks and new 100Mbps networks. Switching LAN technology is a marked improvement over the previous generation of network bridges, which were characterized by higher latencies. Routers have also been used to segment local area networks, but the cost of a router and the setup and maintenance required make routers relatively 2 Introduction 10/100 Fast Ethernet Switch User's Guide impractical. Today's switches are an ideal solution to most kinds of local area network congestion problems. Features The Switches were designed for easy installation and high performance in an environment where traffic on the network and the number of users increase continuously. The Switches with their small, compact size were specifically designed for small to large workgroups (the 4-port switch for smaller workgroups and the 8-port for larger workgroups). These Switches can be installed where space is limited; moreover, they provide immediate access to a rapidly growing network through a wide range of user-reliable functions. The Switches are ideal for deployment with multiple high-speed servers for shared bandwidth 10 Mbps or 100 Mbps workgroups. In 200 Mbps fullduplex mode, any port can provide workstations with a congestion-free data pipe for simultaneous access to the server. The Switches are expandable by cascading two or more switches together. As all ports support 200 Mbps full duplex, the Switches can be cascaded from any port and to any number of switches. The Switches are a perfect choice for site planning to upgrade to Fast Ethernet in the future. Ethernet workgroups can connect to the Switches now, and change adapters and hubs anytime later without needing to change the Switches or reconfigure the network. The Switches combine dynamic memory allocation with store-and-forward switching to ensure that the buffer is effectively allocated for each port; while, data flow is controlled between the transmiting and receiving nodes to guarantee against all possible packet loss. Introduction 3 10/100 Fast Ethernet Switch User's Guide The Switches are an unmanaged 10/100 Fast Ethernet Switch that offers solutions in accelerating small Ethernet workgroups' bandwidths. Other key features are: 4 or 8 UTP/STP ports (depending on model) all come with auto-negotiation and operate at 10/100 Mbps for connection to servers and hubs. Uplink/ MDI-II (media dependent interface) port for uplink to another switch, hub or repeater. Please note that if you are using the uplink port, you will not be able to use port one (1x) because these ports are logically connected. Performance features Store and forward switching scheme capability to support rate adaptation and ensures data integrity. [. . . ] Switch A's LED indicators for the respective connected ports are as follows: 22 Connecting The Switch 10/100 Fast Ethernet Switch User's Guide 100 M is ON for 100Base-TX, otherwise OFF. FDX/Col depends on the connected switch or other device. Connecting The Switch 23 10/100 Fast Ethernet Switch User's Guide A 5 TECHNICAL SPECIFICATIONS General Standards: IEEE 802. 3 10Base-T Ethernet IEEE 802. 3u 100 Base-TX Fast Ethernet ANSI/IEEE Std 802. 3 Nway auto-negotiation IEEE 802. 3 Frame types: Transparent IEEE 802. 3 MAC layer frame size: 64 - 1518 Bytes Protocol: Data Transfer Rate: CSMA/CD Ethernet: 10 Mbps (half duplex) 20 Mbps (full duplex) Fast Ethernet: 100Mbps (half duplex) 200Mbps (full duplex) Topology: Star General 25 Technical Specifications 10/100 Fast Ethernet Switch User's Guide Network Cables: 10BaseT: 2-pair UTP Cat. 3, 4, 5 (100 m) EIA/TIA- 568 100-ohm STP (100 m) 100Base-TX: 2-pair UTP Cat. 5 (100 m) EIA/TIA-568 100-ohm STP (100 m) Number of Ports: DES-1004: 4 x 10/100 Mbps ports DES-1008: 8 x 10/100 Mbps ports Media Interface Exchange: MDI-II RJ-45 shared with port 1x Physical and Environmental AC inputs: Power Consumption: DC fans: Operating Temperature: Storage Temperature: Humidity: Dimensions: 100 - 240 VAC, 50/60 Hz (internal universal power supply) 40 watts maximum 1 built-in 40x40 mm fan 32 ° ~ 122 °F (0 ° ~ 50 °C) -22 ° ~ 140 °F (-30 ° ~ 60 °C) 5% ~ 95% non-condensing 232x142x43 mm (1U) -- DES-1004 324x231x43 mm (1U) -- DES-1008 Physical and Environmental 26 Technical Specifications 10/100 Fast Ethernet Switch User's Guide Weight: DES-1004: 1. 2 Kg DES-1008: 2. 5 Kg EMI: Safety: FCC Class A, CE Mark Class A, VCCI Class I UL (UL 1950), CSA (CSA950), TUV/GS (EN60950) Performance Transmission Method: RAM Buffer: Store-and-forward DES-1004: 4 M bytes per device DES-1008: 8 M bytes per device Filtering Address Table: Packet Filtering/Forwarding Rate: MAC Address Learning: 8 K entries per device 148, 800 pps per port (for 100Mbps) Automatic update Max age: fixed Technical Specifications 27 10/100 Fast Ethernet Switch User's Guide B 6 RJ-45 PIN SPECIFICATION When connecting the DES-1004/ DES-1008 Switch to another switch, a bridge or a hub, a modified crossover cable is necessary. 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