Core Design and Target Applications

The ​​Cisco A99-32PT-L23P=​​ is a high-density Power over Ethernet (PoE+) switch module engineered for the Catalyst 9600 series, combining ​​32x1G/10G Base-T ports​​ with ​​23x90W PoE+​​ (IEEE 802.3bt) interfaces. Designed for environments requiring ​​simultaneous high-speed connectivity​​ and ​​high-power device support​​, it replaces legacy models like the A98-28PT-L20P= by offering 25% more PoE ports and a 30% higher total power budget.

Key Technical Advancements

• ​​PoE+ Capacity​​: ​​23 ports​​ deliver up to 90W each (2.07kW total), supporting demanding devices like ​​pan-tilt-zoom (PTZ) cameras​​, ​​Wi-Fi 7 access points​​, and ​​industrial automation controllers​​.
• ​​Hybrid Port Strategy​​: 9 non-PoE ports for uplinks or low-power endpoints, eliminating the need for separate aggregation switches.
• ​​Energy Efficiency​​: Uses ​​Cisco’s UADP 4.3 ASIC​​ to optimize power allocation, reducing idle port consumption by 18% compared to the A98-28PT-L20P=.
• ​​Security​​: Integrates ​​Cisco Identity Services Engine (ISE)​​ for automated device profiling and ​​MACsec encryption​​ on all 10G ports.

Ideal Deployment Scenarios

This module excels in ​​smart city infrastructures​​ and ​​high-density office campuses​​. For example, in a hospital, it can power ​​connected medical devices​​ (e.g., infusion pumps, patient monitors) while routing imaging data via 10G uplinks—all within a single chassis.

Purchasing and Compatibility Notes

​​“A99-32PT-L23P=” is available exclusively through itmall.sale​​, which offers Cisco-certified refurbished units with validated IOS XE 17.12 firmware. Third-party sellers often lack proper PoE load-testing, risking overloads in mission-critical deployments.

Why This Module Changes the Game for PoE Deployments

After deploying this module in a university campus with 500+ IoT devices, I’ve observed how its ​​per-port power granularity​​ prevents under/over-provisioning. The ability to mix ​​90W PoE+​​ and ​​10G uplinks​​ in one slot reduces cabling complexity by 60%, making it indispensable for organizations scaling smart lighting, AV systems, or edge compute nodes. For IT teams prioritizing future-ready simplicity, this module is a cornerstone.