D-Link DSL-1252 Quick Installation Guide

Summary

This robust 48-port Smart Switch is designed for network professionals needing high-performance, scalable connectivity. The manual serves as your comprehensive guide to deploying the device, covering everything from optimal physical installation and rack mounting to advanced configuration via web interface. Learn how to manage features like VLANs, spanning tree protocols, and port settings, ensuring seamless integration into any professional LAN environment. Get started quickly with detailed instructions for connecting cables and optimizing network performance.

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DES-1252 D-Link 48-Port 10/100Mbps with 4 10/100/1000Base-T ports and 2 Combo SFP Smart Switch

Before Your Begin This Quick Installation Guide gives step-by-step instructions for setting up the D-Link DES-1252 Fast Ethernet Smart Switch. The model you have purchased may appear slightly different from those shown in the illustrations. For more detailed information about the switch, its components, making network connections and technical specifications, please refer to the User’s Manual on the CD included with your switch.

Check Your Package Contents These are the items included with your DES-1252 purchase:

• DES-1252 D-Link 48-Port 10/100Mbps Smart Switch with 4 10/100/1000Base-T ports and 2 Combo SFP

• CD-ROM (containing Manual and Utility Installation)

• 100–240VAC 50/60Hz Power Adapter Using a power

supply with a different voltage rating will damage and void the warranty for this product.

If any of the above items are missing, please contact your reseller.

Page Summary Contents For D-Link DSL-1252 Quick Installation Guide

Page 1 DES-1252 D-Link 48-Port 10/100Mbps with 4 10/100/1000Base-T ports and 2 Combo SFP Smart Switch Before Your Begin This Quick Installation Guide gives step-by-step instructions for setting up the D-Link...

Page 2 Setup for the DES-1252 Fast Ethernet Smart Switch Before physically installing the switch, please make note of the following recommendations: A. Install the DES-1252 in a fairly cool and dry place. Te...

Page 3 Rack Mounting The DES-1252 can be mounted in an EIA standard-size, 19-inch rack, which can be placed in a wiring closet with other equipment. Attach the mounting brackets to both sides of the Switch (...

Page 4 Connecting The DES-1252 Fast Ethernet Smart Switch To Your Network Front Panel Twisted-Pair Ports Mini GBIC Ports └┘ └─┘ LED Indicators 10/100/1000 Base-T Twisted Pair Ports 10/100 BASE-TX Twisted Pai...

Page 5 LED Indicators LED stands for Light-Emitting Diode. The front panel LEDs provides instant status feedback and simplifies monitoring and troubleshooting tasks. LED indicators of the Switch Power LEDs O...

Page 6 100Mbps On When the 100Mbps LED light is on, the respective port is connected to a 100Mbps Fast Ethernet network. Off When the respective port is connected to a 10Mbps Ethernet or no link. Option Port...

Page 7 Ports 51~52 10/100/1000 Base-T LEDs Link/Act On When the Link/Act LED light is on, the respective port is successfully connected to an Ethernet network. Blinking When the Link/Act LED is blinking, the...

Page 8 Installing the Smart Console Utility The Smart Console Utility allows a user to monitor and configure multiple D-Link Web-Smart Switches from a workstation connected to the network. Follow these steps...

Page 9 Configuring the Switch The DES-1252 has a Web GUI interface for smart switch configuration. The Switch can be configured through the Web Browser. A network administrator can manage, control and monito...

Page 10 Once you have successfully logged in, the device status page will appear. (Figure 4) Figure 4 Setup Menu All configuration options on the switch are accessed through the Setup menu on the left side of...

Page 11 Tool You can also find the Tool menu on the main page (Figure 6). Click on it and scroll down as shown in Figure 6, and you can see four options: Reset, Config Backup & Restore, Firmware Backup &a...

Manual Details

Brand	D-Link
Pages	11
File Size	568.74 KB
Published	May 28, 2026

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Frequently Asked Questions

What environmental conditions should I keep the switch in?

Install it in a cool, dry place, free from strong electromagnetic fields, vibration, dust, and direct sunlight.

Does this switch automatically adjust for different network cables?

Yes, every port supports Auto-MDI/MDI-X, allowing any type of cable (straight or crossover) to be used.

How can I back up my switch's configuration settings?

Configuration backup and restore can be done using the 'Tool' menu options on the main page.