Xstack DES-3852 - Switch D-LINK - Free user manual and instructions
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| Product Type | Network Switch |
| Brand | D-Link |
| Model | Xstack DES-3852 |
| Category | Switch |
| Dimensions (W x D x H) | 441 x 207 x 44 mm (1U) |
| Weight | 3.5 kg |
| Power Supply | 100-240 V AC, 50-60 Hz |
| Power Consumption | 50 W max |
| Ports | 48 ports 10/100Base-TX + 4 Gigabit SFP ports |
| Switching Capacity | 13.6 Gbit/s |
| Transmission Method | Store-and-forward |
| MAC Address Table | 16,000 entries |
| Key Features | VLAN, QoS, Spanning Tree, Link Aggregation, IGMP Snooping, ACL |
| Management | Web, CLI (console), SNMP, Telnet, SSH |
| Operating Temperature | 0 °C to 40 °C |
| Operating Humidity | 10% to 90% (non-condensing) |
| Cleaning and Maintenance | Clean the device with a dry, lint-free cloth. Do not use chemicals. |
| Security | Port Security, IEEE 802.1X, MAC Filtering, ACL |
| Spare Parts | External power supply (D-Link specific model) |
| Repairability | Not user-repairable. Contact authorized technical support. |
| Warranty | 3 years |
Frequently Asked Questions - Xstack DES-3852 D-LINK
How to reset the switch to factory defaults?
Press and hold the Reset button on the front of the switch for about 5 seconds until the LEDs flash. Release, the device will restart with default settings.
How to access the web management interface?
Connect via a browser to the default IP address 10.90.90.90 (or the one assigned by DHCP). Use username admin and empty password (default).
How to configure a VLAN on the DES-3852?
From the web interface, go to Configuration > VLAN > 802.1Q VLAN. Create a new VLAN, assign member ports and set the mode (tagged/untagged).
How to update the firmware?
Download the firmware from D-Link website. In the web management, go to Tools > Firmware Upgrade, select the file and click Upgrade. Do not turn off power during the operation.
How to connect a console cable?
Use the supplied RS-232 serial cable (RJ45 to DB9). Connect the console port of the switch to the serial port of your PC. Use a terminal emulator (PuTTY) with settings: 9600 baud, 8 data bits, 1 stop bit, no parity, no flow control.
What do the LED indicators on the front panel mean?
The green Power LED indicates power. Each port has two LEDs: Link/Act (solid green = link, flashing = activity) and Speed (green = 100 Mbps, off = 10 Mbps). SFP LEDs are yellow for link.
How to stack multiple DES-3852 switches?
Use the stacking ports (on the back) with dedicated stacking cables. Configure one master switch and slaves via the Stacking menu in the web interface or CLI. Assign a unique stack ID to each unit.
How to configure Quality of Service (QoS)?
Go to Configuration > QoS. You can set priorities by port, by VLAN or by traffic type (e.g., prioritize voice). Use 802.1p or DSCP classification.
How to enable SNMP for monitoring?
In the web interface, go to Management > SNMP. Enable SNMP, set communities (read/write) and traps. Location and contact can be set.
What to do if a port does not connect?
Check the Ethernet cable and the status of the connected device. Ensure the port is not administratively disabled (status up). Test with another cable and port. Check VLAN and STP settings that may block the port.
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USER MANUAL Xstack DES-3852 D-LINK
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Product information
Brand : D-LINK
Model : Xstack DES-3852
Category : Switch