Why We Use Serial Cable To Connect Two Routers Together' title='Why We Use Serial Cable To Connect Two Routers Together' />Connecting two Cisco router together. Thanks. Well let you know when a new response is added. Yes, there is such a cable. Its called a back to back cable. The best place to look is probably e. Bay. Something like this http cgi. Why We Use Serial Cable To Connect Two Routers Together' title='Why We Use Serial Cable To Connect Two Routers Together' />Bay. Driver Audio Hp Mini 2140 Laptop. ISAPI. dll View. Item item9. Search for cisco serial cable back. Why We Use Serial Cable To Connect Two Routers Together' title='Why We Use Serial Cable To Connect Two Routers Together' />Which Serial cable i need to connect serial port of 2 Routers. Which Serial cable i need to connect serial port of 2 Routers. Answered Question. Whenconnecting them together, we need to use a crossover cable so thatthe. Which cable is used to connect router. When connecting two routers via. Cable Connection Procedures for Cisco 1800. LAN Cables, page 62 Connecting to a Console. Connection Procedures for Cisco 1800 Series Routers.