Cisco Aironet 1550 Series Wireless Access Points can detect, classify, and mitigate RF interference through Cisco 802.11n technology with integrated silicon-level spectrum intelligence. The 1550 series consists of two models: Cisco Aironet 1552E Outdoor Access Point (3 antenna MIMO and two spatial streams) and Cisco Aironet 1552C Outdoor Access Point. With 1550 Series, you can get high-performance wireless connectivity outdoors.