| Front Port | Description | Patched to | Rear Port |
|---|---|---|---|
| Port 1/2 | D-Br-Keller/MM/M-Br / Port 3/4 | Rear / 1 | |
| Port 3/4 | D-Br-Keller/MM/M-Br / Port 15/16 | Rear / 2 | |
| Port 5/6 | Rear / 3 | ||
| Port 7/8 | D-Br-Keller/MM/M-Br / Port 19/20 | Rear / 4 | |
| Port 9/10 | Rear / 5 | ||
| Port 11/12 | D-Br-Keller/MM/M-Br / Port 17/18 | Rear / 6 |
| Rear Port | Description | Patched to |
|---|---|---|
| Rear | B-Br-Keller/MM/D-Br-Keller / Rear |