The Avocent (and similar) serial hubs with RJ45 connectors use the following cable pin connections to interface with a Cisco RJ45 console port. I have included both the direct PIN connections as well as the mapping onto common CAT6 cable.
PIN Connections
| RJ45 Plug 1 | RJ45 Plug 2 |
| 1 | 8 |
| 2 | 2 |
| 3 | 4 |
| 4 | 3 |
| 5 | 6 |
| 6 | 5 |
| 7 | 7 |
| 8 | 1 |
CAT6 RJ45 Wiring Scheme
Pin
| RJ45 Plug 1 | RJ45 Plug 2 |
| 1 | Brown solid | Orange/White |
| 2 | Brown/White | Brown/White |
| 3 | Green solid | Green/White |
| 4 | Green/White | Green solid |
| 5 | Blue solid | Blue/White |
| 6 | Blue/White | Blue solid |
| 7 | Orange solid | Orange solid |
| 8 | Orange/White | Brown solid |
