| SIGNAL | CONTROL UNIT PIN (Cannon 25 pin female) | WHEEL UNIT PIN (Cannon 25 pin male) | COLOUR |
| Z* | 1 | 1 | grey |
| Z | 2 | 2 | pink |
| B* | 3 | 3 | red |
| B | 4 | 4 | blue |
| A* | 5 | 5 | violet |
| A | 6 | 6 | black |
| Gnd | 7 | 7 | white/ yellow |
| Gnd | 8 | 8 | yellow/ brown |
| Vcc | 9 | 9 | grey/ pink |
| Vcc | 10 | 10 | red/ blue |
| T+ | 11 | 11 | white |
| T+ | 12 | 12 | white |
| T- | 13 | 13 | brown |
| T- | 14 | 14 | brown |
| M+ | 15 | 15 | white |
| M+ | 16 | 16 | white |
| M- | 17 | 17 | brown |
| M- | 18 | 18 | brown |
| Vcc | 19 | 19 | yellow |
| LIM+ | 20 | 20 | green |
| Gnd | 21 | 21 | white |
| Vcc | 22 | 22 | brown |
| LIM- | 23 | 23 | white/ green |
| Gnd | 24 | 24 | brown/ green |
| Spare | 25 | white/ grey |