Category Archives: cisco

RJ45 to DB9 Cisco console cable

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

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.


Till Next Time,