For connecting on-site bell buttons for up to 32 residential units via a 4 x 8 button matrix. Operation on the TCS:BUS speech module AMI11110-0010 /-0057 via a 4-pin connector, whereby a maximum of 8 built-in bell button extensions can be connected, which corresponds to 256 on-site bell buttons. Operation on the IP built-in door loudspeaker ASI91000-0000 via a 4-pin connector, whereby a maximum of 8 built-in bell button extensions can be connected, which corresponds to 260 on-site bell buttons. Suitable for use indoors and in protected outdoor areas. Can be integrated behind on-site front panels. When operated on the TCS:BUS speech module AMI11110-0010 / -0057, the functions of sending a door call, switching on the light, sending a control function or sending a door opener command for on-site bell buttons can be configured. 2 indoor stations can be assigned to each on-site bell button. Configuration with configoTM. When operated on the IP built-in door loudspeaker ASI91000-0000, one SIP call per on-site bell button or, alternatively, the control of external actuators can be configured. The settings are saved in the EEPROM of the respective central module. Optical and acoustic error messages are sent via the respective connected central module. Attention! This article has not yet been released. The data provided is for quotation purposes only and can be changed without notice until the product is released. Permissible ambient temperature: -25 degrees C to 55 degrees C. Weight 60 g. Dimensions: H 56 mm x W 88 mm x D 30 mm.