Cisco AIR-CT2504-5-K9 Wireless LAN Controller

The Cisco AIR-CT2504-5-K9 Wireless LAN Controller is a centralized Cisco 2500 Series device that administers wireless access points across enterprise Wi‑Fi deployments. It ships with licenses for up to 5 APs, with expansion possible through additional licenses, and supports as many as 500 wireless clients. The controller provides four Gigabit Ethernet ports for data plane connectivity, plus a single RJ-45 console port for out-of-band management. Administrators can configure and monitor the system via Web GUI, CLI, or SNMP, while the device enforces security policies and delivers centralized performance monitoring. It supports IEEE 802.11a/b/g/n wireless standards and includes WPA, WPA2, 802.1X authentication, and rogue AP detection to protect the network. Redundancy is available at the N+1 level, and the appliance is offered in a desktop or rack-mountable form factor powered by an external AC adapter. Typical deployments include corporate offices, schools, healthcare facilities, and retail environments where centralized wireless management and reliable connectivity are required. Common replacements for this model include Cisco AIR-CT3504-K9, AIR-CT5520-K9, and C9800-L-C-K9.