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Information in this document is subject to change without notice. 
© 2003 D-Link Computer Corporation. All rights reserved. 

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. 
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. 
D-Link Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own. 

FCC Warning 

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These 
limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial 
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this 
user’s guide, may cause harmful interference to radio communications.  Operation of this equipment in a residential area is likely to cause 
harmful interference in which case the user will be required to correct the interference at his own expense. 

CE Mark Warning 

This is a Class A product. In a domestic environment, this product may cause radio interference in which case the user may be required to 
take adequate measures. 

Warnung! 

Dies ist ein Produkt der Klasse A. Im Wohnbereich kann dieses Produkt Funkstoerungen verursachen. In diesem 
Fall kann vom Benutzer verlangt werden, angemessene Massnahmen zu ergreifen. 

Precaución! 

Este es un producto de Clase A. En un entorno doméstico, puede causar interferencias de radio, en cuyo case, 
puede requerirse al usuario para que adopte las medidas adecuadas. 

Attention! 

Ceci est un produit de classe A. Dans un environnement domestique, ce produit pourrait causer des interférences 
radio, auquel cas l`utilisateur devrait prendre les mesures adéquates. 

Attenzione! 

Il presente prodotto appartiene alla classe A. Se utilizzato in ambiente domestico il prodotto può causare 
interferenze radio, nel cui caso è possibile che l`utente debba assumere provvedimenti adeguati. 
 

 
 

 
 
 

 

Summary of Contents for DES-1048G

Page 1: ...D Link DES 1048G 48 Port 10 100Base T and 2 Mini GBIC Port Unmanaged Ethernet Switch Manual Second Edition Building Networks for People RECYCLABLE...

Page 2: ...rgy and if not installed and used in accordance with this user s guide may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmf...

Page 3: ...ITHOUT THE RACK 7 INSTALLING THE SWITCH IN A RACK 7 POWER ON 8 Power Failure 8 CONNECTING THE SWITCH 9 SWITCH TO END NODE 9 SWITCH TO HUB OR SWITCH 9 CONNECTING TO NETWORK BACKBONE OR SERVER 10 TECHNI...

Page 4: ...INDIA 21 MIDDLE EAST DUBAI 21 LATINAMERICA 21 SOUTH AFRICA 21 RUSSIA 21 TAIWAN 21 HEADQUARTERS 21...

Page 5: ...onnecting the switch to the network Appendix A Technical Specifications The technical specifications of the DES 1048G Glossary Lists definitions for terms and acronyms used in this document Intended R...

Page 6: ...ronment If the system gets wet see the appropriate section in your troubleshooting guide or contact your trained service provider Do not push any objects into the openings of your system Doing so can...

Page 7: ...ble to the power supply Unplug the power cable before removing the power supply If the system has multiple sources of power disconnect power from the system by unplugging all power cables from the pow...

Page 8: ...ity or an electrician if you are uncertain that suitable grounding is available CAUTION The system chassis must be positively grounded to the rack cabinet frame Do not attempt to connect power to the...

Page 9: ...ithout wasting a company s existing investment in hardware software and trained personnel The increased speed and extra bandwidth offered by Gigabit Ethernet is essential to coping with the network bo...

Page 10: ...o small connected subnets Each port can support up to 200 Mbps of throughput in full duplex mode In addition the Switch is equipped with two Mini GBIC fiber optic uplink ports enabling convenient acce...

Page 11: ...0BASE SX 1000BASE LX and 1000LH Hot swappable IEEE 802 3x compliant Flow Control support for full duplex operation Supports full duplex 1000Mbps operation only Front Panel Components The front panel o...

Page 12: ...o this socket and the male end of the cord into a power outlet The switch automatically adjusts its power setting to any supply voltage in the range from 100 120 200 240 VAC at 50 60 Hz Side Panel Des...

Page 13: ...D Link DES 1048G Unmanaged Layer 2 Ethernet Switch Figure 2 5 Mini GBIC port modules being plugged into the Switch Note Illustration purposes only modules are not included with the device 5...

Page 14: ...ting up the Switch Install the Switch on a sturdy level surface that can support at least 3 kg of weight Do not place heavy objects on the Switch The power outlet should be within 1 82 meters 6 feet o...

Page 15: ...ation space between the Switch and any other objects in the vicinity Figure 2 1 Prepare Switch for installation on a desktop or shelf Installing the Switch in a Rack The Switch can be mounted in a sta...

Page 16: ...re 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 Power Failure As a precaution...

Page 17: ...air Category 3 4 or 5 UTP STP cable The end node should be connected to any of the ports of the Switch Figure 3 1 Switch connected to an end node The Link Act LEDs for each UTP port light green when t...

Page 18: ...ecting To Network Backbone or Server The mini GBIC fiber optic ports are ideal for uplinking to a network backbone or network server via 1000BASE SX and 1000BASE LX fiber optic cable These ports opera...

Page 19: ...rs max EIA TIA 568 100 ohm STP 100 meters max 1000BASE SX 50 125 m Multimode Fiber optics 550 meters max 62 5 125 m Multimode Fiber optics 275 meters max 1000BASE LX 50 125 m Multimode Fiber optics 55...

Page 20: ...rformance Transmission Method Store and forward RAM Buffer 2 Mbyte per device Filtering Address Table 8K MAC address per device Packet Filtering Forwarding Rate Full wire speed for all connections 14...

Page 21: ...protocol can assign the subnet mask and default gateway to a device bridge A device that interconnects local or remote networks no matter what higher level protocols are involved Bridges form a singl...

Page 22: ...et of SNMP MIB II which allows monitoring and management capabilities by addressing up to ten different groups of information RPS Redundant Power System A device that provides a backup source of power...

Page 23: ...and topology independent devices that communicate as if they are on a common physical LAN VLT Virtual LAN Trunk A Switch to Switch link which carries traffic for all the VLANs on each Switch VT100 A t...

Page 24: ...eser Anleitung keine Verbesserung erzielen e Das Ger t ist gefallen und oder das Geh use ist besch digt f Wenn das Ger t deutliche Anzeichen eines Defektes aufweist 16 Bei Reparaturen d rfen nur Orgin...

Page 25: ...package returned to D Link without an RMA number will be rejected and shipped back to Purchaser at Purchaser s expense and D Link reserves the right in such a case to levy a reasonable handling charg...

Page 26: ...ctional specifications for the Software or to refund at D Link s sole discretion Except as otherwise agreed by D Link in writing the replacement Software is provided only to the original licensee and...

Page 27: ...OSS OF INFORMATION OR DATA CONTAINED IN STORED ON OR INTEGRATED WITH ANY PRODUCT RETURNED TO D LINK FOR WARRANTY SERVICE RESULTING FROM THE USE OF THE PRODUCT RELATING TO WARRANTY SERVICE OR ARISING O...

Page 28: ...For detailed warranty outside the United States please contact corresponding local D Link office...

Page 29: ...358 9 2707 5081 Schwalbacher Strasse 74 URL www dlink fi com D 65760 Eschborn Hertzelia Pituach 46120 Israel Germany TEL 972 9 9715700 Iberia TEL 49 6196 77990 FAX 972 9 9715601 C Sabino De Arana FAX...

Page 30: ..._________________________________ 4 What network operating system s does your organization use D Link LANsmart Novell NetWare NetWare Lite SCO Unix Xenix PC NFS 3Com 3 Open Banyan Vines DECnet Pathwor...

Page 31: ......

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