Emergency Switch:Removing the control of all floors.
Paired with BF-670/BF-870/BF-660/BF-880 for elevator access control.
16 sets control point of floor. It can be simultaneously connected with maximum of 8 elevator controllers for any buildings which exceed 128 floors.
The number of controlled persons is without restriction. You can control the authorized person from IC card number for the purpose of the integration between different systems.