Friday, May 13, 2016

Cisco Console in a Bind: Make your own console cable

Well, not technically a Cisco device but one that uses the same pin layout as a Cisco device. A few days ago I had a Ubiquiti Edgerouter Lite go bad, and had to poke around with it using its console port. Problem was I didn't have any Cisco console cables laying around. So I ended up making my own, using a DB-9 serial cable and an RJ-45 cable.

I was looking up some guides online on how to make the cable, and had to try two or three different pinouts to find one that worked. The one that worked, from left to right conductors upwards was; purple, green, brown, black, red, orange, and finally blue. Yellow was left out.
Final pinout: Purple, green, brown, black, red, orange, and blue