| Front Port | Description | Patched to | Rear Port |
| Port 1/2 | | | Rear / 1 |
| Port 3/4 | | D-Br-Keller/MM/B-Br-Keller / Port 1/2 | Rear / 2 |
| Port 5/6 | | D-Br-K/MM/C-BrD-Br-K/MM/D-Br-1D-Br-K/MM/D-Br-3 / Port 3/4 | Rear / 3 |
| Port 7/8 | | D-Br-K/MM/C-BrD-Br-K/MM/D-Br-1D-Br-K/MM/D-Br-3 / Port 23/24 | Rear / 4 |
| Port 9/10 | | | Rear / 5 |
| Port 11/12 | | D-Br-K/MM/C-BrD-Br-K/MM/D-Br-1D-Br-K/MM/D-Br-3 / Port 21/22 | Rear / 6 |
| Port 13/14 | | | Rear / 7 |
| Port 15/16 | | D-Br-Keller/MM/B-Br-Keller / Port 3/4 | Rear / 8 |
| Port 17/18 | | D-Br-Keller/MM/B-Br-Keller / Port 11/12 | Rear / 9 |
| Port 19/20 | | D-Br-Keller/MM/B-Br-Keller / Port 7/8 | Rear / 10 |
| Port 21/22 | | | Rear / 11 |
| Port 23/24 | | | Rear / 12 |