47-4406-03 Cisco 2500 Series Dual Serial Ethernet Token Ring Router (Refurbished)
CISCO2521 Cisco Token Ring Dual Serial Dual Async/sync ISDN-BRI S/T Router (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 CISCO-2501 2500 Series 2501 2-Port Serial 1-Port Ethernet AUI Router
Amazon.com: Cisco CISCO2511 2511 Access Server 2500 Series Router (Renewed) : Electronics
Cisco 890 Integrated Services Routers - Cisco
Deploy the 2500 Series Wireless Controller - Cisco
Deploy the 2500 Series Wireless Controller - Cisco
Cisco 2500 Series Model 2503 Dual Serial Router
CISCO881-K9 - Cisco ISR 800 Series Router
Cisco 2500 Series Wireless Controllers for Medium Branch and Small Enterprises-Up to 75 Access Points – Router Switch Blog
NEW CISCO AIR-CT2504-50-K9 2500 SERIES WIRELESS CONTROLLER 15 ACCESS POINTS AP | Netmode
Amazon.com: Cisco CISCO2514 2500 Series Router Router : Electronics
cisco Ccna-cisco Ios-cisco Router (25xx Series) And Its Interfaces