CAB-48DC-40A-CUST=: How Does Cisco’s Custom
Defining the CAB-48DC-40A-CUST= The C...
Hardware Overview & UPOE+ Capabilities
The C9300-24UB-A= is a Catalyst 9300 series switch engineered for environments requiring robust Power over Ethernet (PoE) support. It features 24x 1GBase-T RJ45 ports with Cisco UPOE+ (Universal PoE+), delivering up to 90W per port—ideal for powering devices like Wi-Fi 7 access points, pan-tilt-zoom (PTZ) cameras, and even small IoT edge servers. The modular network slot supports flexible uplinks via 8x 10G SFP+ or 2x 40G QSFP+ modules, ensuring seamless integration into high-speed backbones.
Performance & Redundancy Features
- Switching Capacity: 176 Gbps non-blocking throughput handles concurrent data streams from 4K video conferencing, AR/VR applications, and industrial IoT sensors without congestion.
- Stacking: StackWise-1T allows up to eight switches to operate as a single entity with 800Gbps stacking bandwidth, simplifying management in large campuses or distributed enterprises.
- Power Redundancy: Dual 1100W hot-swappable power supplies provide N+1 redundancy, critical for healthcare or retail environments where downtime is unacceptable.
Addressing Critical Deployment Concerns
Q: How does it manage power allocation for mixed PoE devices?
The switch leverages Cisco’s EnergyWise Technology, dynamically adjusting power budgets based on real-time device requirements. For example, a port powering a 60W PTZ camera can automatically reduce allocation if the device enters low-power mode, freeing capacity for other endpoints.
Q: Can it support legacy and modern SFP modules simultaneously?
Yes. The modular uplink slot is backward-compatible with 1G/10G SFPs while ready for 40G QSFP+, allowing phased upgrades without overhauling existing fiber infrastructure.
Strategic Use Cases
- Smart Stadiums: Powers digital signage, ticketing systems, and Wi-Fi 7 APs while prioritizing live streaming traffic via Auto-QoS.
- Industrial IoT: Securely connects PLC controllers, AGVs, and sensors using Cisco Cyber Vision for embedded threat detection.
- Hybrid Offices: mGig-ready ports ensure readiness for next-gen wireless, with MACsec encryption safeguarding sensitive communications.
Licensing & Procurement Insights
For enterprises needing uncompromised PoE+ scalability, the [“C9300-24UB-A=” link to (https://itmall.sale/product-category/cisco/) offers Cisco-validated hardware with DNA Advantage licensing, enabling SD-Access automation. Ensure firmware is upgraded to IOS XE 17.12.4 to leverage encrypted traffic analytics (ETA) and zero-trust features.
Personal Insight: While the C9300-24UB-A=’s 90W per port is impressive, its true value lies in EnergyWise’s granular power management—often overlooked in favor of raw specs. However, deploying it without meticulous power planning risks underutilization, especially in mixed-device environments. Pairing it with lower-tier PoE switches could optimize costs while maintaining high-power zones where truly needed.