Original Replacement Elevator Switch Button Bst Button Braille Elevator Button Elevator Round Button With Braille Blue Light Elevator Accessories A4n18639

Original Replacement Elevator Switch Button Bst Button Braille Elevator Button Elevator Round Button With Braille Blue Light Elevator Accessories A4n18639

Basic Functions: Enabling Elevator "Call and Floor Selection" (Core Need)
Basic functions are the core value of elevator buttons, directly determining whether passengers can "accurately call the elevator" and "reach their target floor." They primarily include two types of buttons: hall call buttons (outside the elevator car) and floor selection buttons (inside the elevator car).
1. Hall call buttons: "Call the elevator to the current floor"
Installed on the wall outside the elevator hall door, one set per elevator (or a shared set for multiple elevators), these buttons send a "request signal" to the elevator control system, instructing the elevator to travel to the current floor to pick up passengers. There are two types:
Up button (↑): Pressed when a passenger needs to travel to an area above the current floor. The button illuminates (usually an LED), indicating that the call has been received. When the elevator reaches the current floor and its direction matches the call (upward), the button turns off, indicating that the passenger may board.
For example: If you press "↑" on the 3rd floor, if the elevator is traveling upward from the 1st floor, it will prioritize calls to the 3rd floor and open the doors when it reaches the 3rd floor.
Down button (↓): Press this button when a passenger needs to go to an area below the current floor. The logic is the same as the up button, and it will only respond to elevators traveling in the downward direction.
For example: If you press "↓" on the 5th floor, if the elevator is traveling downward from the 8th floor, it will prioritize stopping at the 5th floor and open the doors to receive passengers.

 In-Car Floor Selection Buttons: "Specify Destination Floor"

Installed on the elevator's operating panel, each button corresponds to a floor (such as "1," "2," "3," "-1," etc.). This button allows passengers to select their desired destination floor after boarding the elevator. Core Logic:

After pressing the destination floor button, it illuminates (response "Selection Confirmed"), and the elevator control system simultaneously plans the optimal route (e.g., based on "up first, down last" or "nearest" order).

When the elevator reaches the designated floor, the button's light turns off, accompanied by a floor indicator sound (e.g., "ding dong") and a flashing floor number on the display, reminding passengers to prepare to exit.

Special Design: Some elevators feature differentiated labeling for the "1st Floor" and "-1st Floor (Basement)" buttons (e.g., green for "1st Floor" and yellow for "-1st Floor") to prevent passengers from accidentally pressing them.