CISCO SYSTEMS 2500 SERIES MODEL 2501 DUAL SERIAL ACCESS SERVER NETWORK ROUTER | eBay
CISCO2502 Cisco 2502 Router 1 x Token Ring 2 x Serial (Refurbished)
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 2513 Ether/Token Ring Remote Router, Dual WAN, 8MB Flash, 16MB DRAM