Opis

Blu-ray (Otis uporablja 3 žice)

Blu-ray (druge znamke uporabljajo 4 žice)

Bela luč (3 vrstice za Otis)

Bela svetloba (druge znamke uporabljajo 4 žice)

Rdeča luč (Otis uporablja 3 žice)

Rdeča luč (druge znamke uporabljajo 4 žice)

A311 rdeča luč

The button is divided into blue light, white light, and red light, but the color of the light is different. For Otis, please buy 3-wire (Otis has no red light), other elevator brands please buy 4-wire, 3-wire and 4-wire cannot be used in common. 3-wire and 4-wire refer to internal wiring, not visible from the outside. There are 4 pins.