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,
Cisco 2500 Router products
Cisco 2500 Series 2503 Router | eBay
Cisco 2500 Series 2503 Router | eBay
ICT Hardware | IT Distributors Europe | Cisco 2503 - ICT Hardware | IT Distributors Europe