| Pin | Signal | Description | 
| 1,2 | +5 V | |
| 3 | J1B1 | |
| 4 | J2B1 | |
| 5 | J1CX | |
| 6 | J2CX | |
| 7 | GND | |
| 8 | MIDI-OUT | |
| 9 | GND | |
| 10 | J2CY | |
| 11 | J1CY | |
| 12 | J2B2 | |
| 13 | J1B2 | |
| 14 | MIDI-IN | |
| 15 | +5 V | 

 
| Pin | Signal | Description | 
| 1,2 | +5 V | |
| 3 | J1B1 | |
| 4 | J2B1 | |
| 5 | J1CX | |
| 6 | J2CX | |
| 7 | GND | |
| 8 | MIDI-OUT | |
| 9 | GND | |
| 10 | J2CY | |
| 11 | J1CY | |
| 12 | J2B2 | |
| 13 | J1B2 | |
| 14 | MIDI-IN | |
| 15 | +5 V |