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Reproduction in any manner whatsoever without the written permission of D-Link Computer Corporation is strictly forbidden. Trademarks used in this text: D-Link and the D-Link logo are trademarks of D-Link Computer Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation.
Glossary – Lists definitions for terms and acronyms used in this document. Intended Readers The DES-1048 User Guide contains information for setup and management and of the DES-1048 switch. This guide is intended for network managers familiar with network management concepts and terminology.
D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch Safety Instructions Use the following safety guidelines to ensure your own personal safety and to help protect your system from potential damage. Throughout this safety section, the caution icon ( ) is used to indicate cautions and precautions that you need to review and follow.
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D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch Safety Instructions (continued) • To help prevent electric shock, plug the system and peripheral power cables into properly grounded electrical outlets. These cables are equipped with three-prong plugs to help ensure proper grounding. Do not use adapter plugs or remove the grounding prong from a cable.
D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch Safety Instructions (continued) Always load the rack from the bottom up, and load the heaviest item in the rack first. Make sure that the rack is level and stable before extending a component from the rack.
Switch Description The DES-1048 Switch module is equipped with forty-eight ports providing dedicated 10 or 100 Mbps bandwidth. These ports can be used for connecting PCs, servers, and hubs. The forty-eight dual speed ports use...
D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch standard twisted pair cabling and are ideal for segmenting networks into small, connected subnets. Each port can support up to 200 Mbps of throughput in full-duplex mode. Features • Forty-eight 10/100 Mbps ports for connections to other LAN switches and hubs, or directly to power users •...
D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch Figure 1-2. LED Indicators This indicator on the front panel should be lit during the Power-On Self Test (POST). It will light green approximately 2 seconds after the switch is powered on to indicate Power the ready state of the device.
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D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch Figure 1-4. Side Panels (the left-hand panel is pictured on top)
• Four rubber feet with adhesive backing If any item is found missing or damaged, please contact your local D-Link reseller for replacement. Before You Connect to the Network The site where you install the Switch may greatly affect its performance. Please follow these guidelines for setting up the Switch.
D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch Installing the Switch Without the Rack When installing the Switch on a desktop or shelf, the rubber feet included with the Switch should first be attached. Attach these cushioning feet on the bottom at each corner of the device. Allow enough ventilation space between the Switch and any other objects in the vicinity.
D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch Mounting the Switch in a Standard 19” Rack Figure 2-3. Installing Switch in a rack Power On Plug one end of the AC power cord into the power connector of the Switch and the other end into the local power source outlet.
D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch SECTION 3 Connecting The Switch Switch To End Node Switch To Hub or Switch Connecting To Network Backbone or Server NOTE: All 48 high-performance NWay Ethernet ports can support both MDI-II and MDI-X connections.
D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch Figure 3-2. Switch connected to a port on a hub or switch using either a straight or crossover cable– any normal cable is fine Connecting To Network Backbone or Server A valid connection is indicated when the Link LED is lit.
D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch Glossary 100BASE-TX – 100Mbps Ethernet implementation over Category 5 and Type 1 twisted pair cabling. 10BASE-T – The IEEE 802.3 specification for Ethernet over Unshielded Twisted Pair (UTP) cabling. aging – The automatic removal of dynamic entries from the Switch Database which have timed-out and are no longer valid.
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D-Link DES-1048 Unmanaged Layer 2 Ethernet Switch LAN – Local Area Network. A network of connected computing resources (such as PCs, printers, servers) covering a relatively small geographic area (usually not larger than a floor or building). Characterized by high data rates and low error rates.
This Warranty applies on the condition that the product Registration Card is filled out and returned to a D-Link office within ninety (90) days of purchase. A list of D-Link offices is provided at the back of this manual, together with a copy of the Registration Card.
D-Link Offices for Registration and Warranty Service The product's Registration Card, provided at the back of this manual, must be sent to a D-Link office. To obtain an RMA number for warranty service as to a hardware product, or to obtain warranty service as to a software product, contact the D-Link office nearest you.
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