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,
CISCO2503-CH Cisco 2503 Router 1 x 10Base-5 AUI 2 x Serial 1 x ISDN
__92289.1377022557.jpg?c=2&imbypass=on&imbypass=on "Cisco 2503 Wired Network Router Ethernet T25535 - TEAMEQUIP")
Cisco 2503 Wired Network Router Ethernet T25535 - TEAMEQUIP
CISCO2504-1 Cisco 2504 Router 1 x Token Ring 2 x Serial 1 x ISDN BRI
Used Router CISCO2503 CISCO serveur-occasion.com
ROUTER CISCO 2503 1XETHERNET / 2XSERIAL / 1X ISDN BRI WH
Cisco2503 - Knowledge Computers
Cisco 2503 Multiprotocol Router
Cisco 2500 Series Cisco 2503 ISDN Ethernet Router Part Number: T94-5011-0 | eBay
CISCO2503 Cisco Routers
Dez Blanchfield on Twitter: ". #FlashBack remember the @CISCO 2501 ;-) oh them's were the days!! #internet #business #technology #computer #design #art #o #web #tech #google #software #communication #cisco #router #2501 #serial #
Cisco 2500 Series 2503 Router | eBay
Cisco 2500 Router products
ROUTER CISCO 2503 1XETHERNET / 2xSERIAL / 1x ISDN BRI
CISCO2503-DC Cisco Routers
2501-16M Cisco 1 x AUI LAN 16MB Flash Serial Ethernet Router (Refurbished)
Cisco 2500 Series Router 2503 ISDN, 2x serial + free AUI eth,works! original box | eBay
CISCO 2503 Router . 30days warranty Real time listing. | eBay
ICT Hardware | IT Distributors Europe | Cisco 2503 - ICT Hardware | IT Distributors Europe
Router Cisco 2500 Series - Model 2503 Massamá E Monte Abraão • OLX Portugal
Cisco CISCO2503 Ethernet/Dualserial/Isdn-Bri Router
Cisco 2500 Router products
ICT Hardware | IT Distributors Europe | Cisco 2503 - ICT Hardware | IT Distributors Europe
Cisco 2500 series - Wikipedia
__92282.1377022557.jpg?c=2&imbypass=on&imbypass=on "Cisco 2503 Wired Network Router Ethernet T25535 - TEAMEQUIP")