CISCO AIR-CT2504-K9 - 2504 Wireless Controller with 0 AP Licenses
Cisco 2500 Series Wireless Controllers - Cisco
Cisco 2500 Series Wireless Controllers for Medium Branch and Small Enterprises-Up to 75 Access Points – Router Switch Blog
My grandfather gave me a Cisco 2500 series router and it looks like it predates Ethernet. How can I get this working? What are all these ports, what signals do they use,