I have a new Cisco 3750X switch and I want to connect to it via console.
Only…. this switch does not have a DB9 connector on it, its Serial port is RJ45. I have a USB to RJ45 cable, and am on Windows 7, but cannot seem to get Putty or other terminal clients to work.
How can I do a console connection to this switch? Thanks!
Best Answer
Many network devices use the Yost RJ45 pinout for RS-232 console communications. Cisco is probably the best known, but certainly not the only. The switch should have come with a DB9 to RJ45 blue cable. You can just pickup any USB-DB9 Serial adapter (though I highly recommend getting one with a Prolific PL2303HX Rev D Chipset, as they "just work" and are compatible with a wide array of OSes).