| CN19 | Terminal | Simbol | Description | Address |
|---|---|---|---|---|
  | 1A | Internal bridge 1A-2A-1B-2B | ||
| 2A | ||||
| 3A | DATA1+ | SSI1 data input | 1 | |
| 4A | DATA1- | |||
| 5A | CLOCK1+ | SSI1 clock output | ||
| 6A | CLOCK1- | |||
| 7A | 0V | Inputs counter common | ||
| 1B | Internal bridge 1A-2A-1B-2B | |||
| 2B | ||||
| 3B | DATA2+ | SSI2 data input | 2 | |
| 4B | DATA2- | |||
| 5B | CLOCK2+ | SSI1 clock output | ||
| 6B | CLOCK2- | |||
| 7B | 0V | Inputs counter common | ||