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Phone: +86 16626708626Description
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Ports | 24 x 10/100/1000BASE-T 802.3bt (90W) PoE ports, MACsec-capable |
| Uplinks/Stacking | 2 x Stacking/QSFP28 ports (unpopulated) |
| Expansion | 1 x VIM slot |
| PoE Budget | Supports high-power 90W per port |
| Switching Capacity | 648 Gbps |
| Forwarding Rate | 482.1 Mpps |
| Management Ports | Serial console, OOB 10/100/1000, USB ports |
| Power | Dual PSU support |
| Form Factor | 1U rack-mountable |
| Operating Temperature | 0°C to +45°C (model dependent) |
4. Product Introduction
The Extreme Networks 5520-24W is a 5520 Series universal switch with 24 ports of 10/100/1000BASE-T delivering up to 90W 802.3bt PoE per port. It includes a Versatile Interface Module slot and stacking/QSFP28 ports for flexible high-speed connectivity.
This model powers demanding edge devices such as PTZ cameras, high-power Wi-Fi access points, and IoT endpoints in converged industrial and enterprise networks. Dual-persona hardware supports multiple operating systems for maximum deployment flexibility.
- 5520-24W
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| PoE ports not powering | Budget or classification | High | Use show inline-power command | Verify total draw; adjust priority |
| No link on copper ports | Negotiation or cable | High | Check port status and counters | Test with different cable category |
| VIM or QSFP28 not detected | Module seating | Medium | Show inventory and interfaces | Reseat module firmly |
| High power consumption | Overloaded PoE | Medium | Monitor power usage statistics | Distribute load or add second PSU |
| Stacking issues | Cable or firmware | Medium | Show stack status | Use approved stacking cables |
| Management access lost | Config or IP change | Low | Console in and check running config | Reset to defaults if necessary |
Gather show tech-support output for faster resolution.
6. Frequently Asked Questions (FAQ)
What PoE standard does the 5520-24W support? It provides IEEE 802.3bt 90W PoE on all 24 ports, backward compatible with 802.3af/at devices.
Does it support stacking? Yes, with two dedicated stacking/QSFP28 ports for high-bandwidth stack connections.
What can I install in the VIM slot? Versatile Interface Modules for additional 10Gb, 25Gb, or other uplink options. Check current Extreme Networks compatibility list.
Is redundant power supported? Yes, the switch accommodates dual power supplies for enhanced reliability.
What operating systems are available? Universal hardware supports multiple Extreme personas (EXOS or other) for different network requirements.
What condition are your units? New Original / New Surplus. Switches receive full PoE load testing, port verification, VIM/QSFP checks, and system burn-in. Detailed test reports provided.
How do I upgrade or configure this switch? Use the console or management port for initial setup. Firmware updates and advanced configuration are handled through Extreme management tools or CLI. Always review release notes for your chosen OS persona.
