Connect your computer's serial port to the RJ45 console port on your Cisco router. The DB9CONCABL6 6ft Cisco Console Management Cable is designed as a replacement cable for use with several Cisco routers, including the 600, 800, 1600 and 1700 series.StarTech.com's Cisco Console Management cable is Equivalent to Cisco Part No. CAB-CONSOLE-RJ45 and AIR-CONCAB1200 Console Cable for 1130AG, 1200, 1230AG, and 1240 Platforms.