Voltage | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 |
4Vdc | On | Off | Off | On | On | Off | Off | On |
3Vdc | On | On | Off | Off | On | Off | Off | On |
2Vdc | Off | On | On | Off | On | Off | Off | On |
1Vdc | On | Off | Off | On | On | On | Off | Off |
−1Vdc | Off | On | On | Off | Off | Off | On | On |
−2Vdc | On | Off | Off | On | Off | On | On | Off |
−3Vdc | Off | Off | On | On | Off | On | On | Off |
−4Vdc | Off | On | On | Off | Off | On | On | Off |