QSFP-40G-ER4= Transceiver: Technical Specific
Introduction to the QSFP-40G-ER4= in Cisco’s Op...
Overview of the C9200L-48P-4X-E=
The Cisco Catalyst C9200L-48P-4X-E= is a high-density PoE+ switch engineered to support demanding IoT, wireless, and enterprise environments. Part of the Catalyst 9200L series, it combines 740W total PoE+ power with 10G uplinks, making it ideal for organizations scaling connected devices without compromising performance.
Core Technical Specifications
- Port Configuration: 48 x PoE+ Ethernet ports + 4 x 10G SFP+ uplinks.
- PoE Budget: 740W total (30W per port max), supporting devices like Wi-Fi 6E APs and PTZ cameras.
- Stacking: Cisco StackWise-160 allows up to 8 switches to operate as a single unit with 160Gbps bandwidth.
- Software Features: Includes LAN Base license for Layer 3 routing, MACsec-256 encryption, and Cisco DNA Center integration.
Target Use Cases
This switch is optimized for environments requiring high-power PoE and multi-gigabit throughput:
- Smart campuses with hundreds of connected IoT devices.
- High-density wireless deployments (e.g., stadiums, conference centers).
- Healthcare or education networks needing reliable VoIP and video conferencing.
C9200L-48P-4X-E= vs. Other Cisco PoE Switches
| Feature | C9200L-48P-4X-E= | C9200L-24P-4X-E= (24-port variant) |
|---|---|---|
| PoE+ Ports | 48 ports (740W) | 24 ports (370W) |
| Uplink Speed | 4 x 10G SFP+ | 4 x 10G SFP+ |
| Scalability | Better for large sites | Suits mid-sized deployments |
Addressing Key User Questions
Q: Can it power 30W devices on all 48 ports simultaneously?
A: Yes—if the total power draw does not exceed 740W. Use Cisco’s Power Calculator to plan deployments.
Q: How does it handle network congestion with high PoE loads?
A: Advanced QoS prioritizes critical traffic (e.g., VoIP), while 10G uplinks prevent bottlenecks.
Q: Is redundant power supply supported?
A: Yes—optional 1100W AC or DC power supplies ensure uptime for mission-critical setups.
Acquisition and Configuration Tips
For enterprises requiring Cisco-certified hardware with full warranty coverage, the C9200L-48P-4X-E= is available at itmall.sale. Prioritize firmware updates during deployment to access the latest security and feature enhancements.
Expert Opinion
Having overseen deployments in large retail chains, the C9200L-48P-4X-E= stands out for eliminating the need for external PoE injectors while maintaining wire-speed performance. Its 740W power budget and 10G uplinks future-proof networks against growing device demands, though organizations must ensure robust cooling and power infrastructure to avoid overloading circuits. For high-density PoE scenarios, this switch is a workhorse—but its value diminishes in smaller setups where a 24-port model suffices.