New Sealed Cisco AIR-CT5520-50-K9 5520 Wireless Controller 50 Access Points Features and Capabilities As a component of the Cisco Digital Network Architecture, the 5520 Series Wireless LAN Controller provides real-time communications between Cisco Aironet access points, Cisco Prime Infrastructure, and Cisco Mobility Services Engine. It is also interoperable with other Cisco controllers. The 5520 Series comes with integrated services: Application Visibility and Control (AVC) provides granular classification and prioritization of thousands of business-critical apps with dynamic protocol updates Location-aware Bonjour and Chromcast support services advertised across a Layer 3 network at a user and device level Embedded Policy Classification Engine offers simplified BYOD with native device profiling and onboard services Software-defined segmentation with Cisco TrustSec reduces access control list maintenance, complexity, and overhead.