If you need to make your own cisco console port cable, RJ45 to DB9, here are the pinouts for your reference.
If you have 568A ethernet cable:
CAT 5 DB9
Pin 1: Green Stripe Pin 8
Pin 2: Green Pin 6
Pin 3: Orange Stripe Pin 2
Pin 4: Blue Pin 5
Pin 5: Blue Stripe Pin 5
Pin 6: Orange Pin 3
Pin 7: Brown Stripe Pin 4
Pin 8: Brown Pin 7
If you have 568B ethernet cable:
CAT 5 DB9
Pin 1: Orange Stripe Pin 8
Pin 2: Orange Pin 6
Pin 3: Green Stripe Pin 2
Pin 4: Blue Pin 5
Pin 5: Blue Stripe Pin 5
Pin 6: Green Pin 3
Pin 7: Brown Stripe Pin 4
Pin 8: Brown Pin 7
Notes:
a)DB9 Pins 1 and 9 not connected.
b)The “Blue Stripe” and “Blue” must connect to pin 5 on DB9
c)If using Startech DB9 to RJ45 Adapter(GC98FF)for example, what matters is standard they wired RJ45 with, as Ethernet cable then would not matter as long as both sides were the same standard.
References:
http://www.ciscoconsole.com/wan/cisco-general/cisco-console-rj45-to-db9-cable-pinout-details.html/
http://www.instructables.com/id/Simple-RJ45-DB9-Cisco-console-cable/
Till Next Time,
Dan.