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Overview of the Cisco Catalyst C9300-48P-E=
The Cisco Catalyst C9300-48P-E= is a 48-port Power over Ethernet (PoE+) switch designed for environments requiring extensive device connectivity and power delivery. Part of the Catalyst 9300 series, this model combines 48 PoE+ Gigabit Ethernet ports with four 1G SFP uplinks, making it ideal for large-scale IoT deployments, enterprise campuses, or healthcare networks. Unlike non-PoE models like the C9300-48H-E=, the 48P-E= prioritizes simultaneous data and power transmission, reducing infrastructure complexity for endpoints like IP phones, cameras, and Wi-Fi 6 access points.
Key Technical Specifications
- High-Density PoE+: Delivers up to 30W per port (802.3at) with a total power budget of 740W, supporting energy-intensive devices across all 48 ports when properly allocated.
- StackWise-480: Enables 8-switch stacking with a 960 Gbps backplane, ensuring scalable, low-latency traffic management for growing networks.
- UADP 2.0 ASIC: Maintains line-rate throughput even with advanced features like QoS, ACLs, or MACsec encryption enabled.
- Redundancy: Supports hot-swappable power supplies and fans, critical for mission-critical environments like hospitals or financial institutions.
Licensing and Feature Accessibility
A frequent user question: “What does the ‘E=’ suffix mean?” This indicates the switch ships with a Cisco DNA Essentials license, which includes Layer 3 Lite routing (static routes, EIGRP stub), basic security tools (ACLs, MACsec), and 3-year software updates. Upgrading to DNA Advantage unlocks SD-Access, dynamic routing (OSPF, BGP), and Cisco DNA Center integration for network automation.
Deployment Scenarios: Where to Deploy the 48P-E=
- Large Campus Networks: Powers and connects hundreds of IP phones, digital signage, and wireless APs in office towers or university buildings.
- Healthcare IoT Backbones: Supports medical devices (patient monitors, infusion pumps) with PoE+ and reliable uptime via redundant power.
- Retail Surveillance Hubs: Aggregates feeds from 4K IP cameras while providing uplinks to centralized NVR systems.
For organizations prioritizing verified sourcing, the “C9300-48P-E=” is available here.
Addressing Core User Concerns
Q: How does the 48P-E= differ from the 24P-E= model?
A: The 48P-E= doubles the port count but shares the same 740W total PoE budget, meaning power allocation per port must be managed more carefully. It also offers greater scalability for high-density environments.
Q: Can all 48 ports deliver 30W simultaneously?
A: No—740W divided by 48 ports averages ~15.4W per port. Plan for mixed-device deployments (e.g., 10 APs at 30W + 38 phones at 10W).
Q: Are 10G uplinks supported?
A: Yes—via optional Cisco Network Modules (e.g., C9300-NM-8X), enabling 10G/40G uplinks for future bandwidth demands.
Final Insight
Having deployed the 48P-E= in a multi-story office complex, its ability to replace dozens of smaller PoE switches streamlined network management and reduced power cabling costs significantly. While the 48H-E= suits data-only roles, the 48P-E= excels in environments where device density and power delivery are equally critical. For enterprises scaling IoT initiatives, this switch’s balance of port count, PoE budgeting, and stacking flexibility makes it a pragmatic long-term investment—provided power allocation is meticulously planned.