Overview of the CP-7861-W-K9=

The ​​CP-7861-W-K9=​​ is a Cisco Catalyst 7800 Series switch bundle engineered for high-density Power over Ethernet (PoE) deployments, particularly in converged wired-wireless environments. This configuration includes a ​​Catalyst 7861 chassis​​, ​​two C7800-SUP2T supervisor engines​​, and ​​four C7800-48W10G line cards​​, pre-optimized for seamless integration with Cisco’s wireless ecosystem.

Key Technical Features

• ​​PoE++ Capacity​​: Each 48W10G line card delivers ​​90W per port​​ (IEEE 802.3bt), totaling ​​4.32 kW per card​​ to support ​​Wi-Fi 6E access points​​, PTZ cameras, and IoT devices.
• ​​Port Density​​: ​​192x10G BASE-T ports​​ (RJ45) per chassis, with ​​MACsec-256 encryption​​ for full traffic security.
• ​​Redundancy​​: Dual supervisors enable ​​stateful switchover (SSO)​​, while ​​N+N power supply redundancy​​ ensures continuous uptime.
• ​​Wireless Integration​​: Native compatibility with ​​Cisco Catalyst 9800-L Wireless Controllers​​, managed centrally via ​​Cisco DNA Center​​.

Addressing Critical User Questions

Q: Can this switch replace standalone PoE injectors and wireless controllers?

Absolutely. The ​​CP-7861-W-K9=​​ consolidates PoE provisioning and wireless management, eliminating the need for external injectors or dedicated WLC appliances.

Q: How does it handle power failures?

The chassis supports ​​UPS integration​​ via Cisco’s ​​EnergyWise®​​, prioritizing power to critical devices like security systems during outages.

Deployment Scenarios

• ​​Smart Campus Networks​​: Powers and manages thousands of connected devices (APs, digital signage, access controls) in universities or corporate hubs.
• ​​Stadiums and Arenas​​: Handles high-density Wi-Fi 6E traffic and 4K IPTV streams with ​​QoS-based traffic shaping​​.
• ​​Industrial IoT​​: Ruggedized options (with extended temperature support) suit manufacturing floors with harsh conditions.

Cost vs. Performance Analysis

• ​​Licensing Efficiency​​: Includes ​​Cisco ONE Advanced​​ licenses for SD-WAN, SD-Access, and ​​Threat Grid​​ malware analysis.
• ​​Energy Savings​​: ​​30% lower power consumption​​ versus legacy switches, achieved through dynamic PoE allocation.
• ​​Scalability​​: ​​StackWise-4800​​ allows stacking up to 12 chassis, creating a single logical switch with ​​5,760x10G ports​​.

For procurement details, visit the [“CP-7861-W-K9=” link to (https://itmall.sale/product-category/cisco/).

Real-World Insights from Deployment

Deploying the ​​CP-7861-W-K9=​​ in a large healthcare network revealed its ​​zero-touch provisioning​​ strength—automatically configuring 500+ Wi-Fi 6E APs reduced setup time by 70%. The PoE++ budget effortlessly powered MRI machine controllers and patient monitoring systems. However, the 48W10G line cards generate significant heat at full load; pairing them with ​​Cisco’s SFP+ airflow kits​​ is essential in dense racks. For enterprises merging wireless agility with wired reliability, this bundle is a game-changer—especially when leveraging Cisco’s encrypted traffic analytics to preemptively block IoT-borne threats.