| Resistance | 1 (UP) - 10 (GND) | UP switch is pressed | Below 1 Ω |
| UP switch is not pressed | 10 kΩ or higher | ||
| 15 (DOWN) - 10 (GND) | DOWN switch is pressed | Below 1 Ω | |
| DOWN switch is not pressed | 10 kΩ or higher | ||
| 16 (OPN) - 10 (GND) | OPEN switch is pressed | Below 1 Ω | |
| OPEN switch is not pressed | 10 kΩ or higher | ||
| 2 (CLS) - 10 (GND) | CLOSE switch is pressed | Below 1 Ω | |
| CLOSE switch is not pressed | 10 kΩ or higher |