Expansion module for mounting speaker door communication system module to extend the built-in speaker when more than 8 mechanical doorbell to be connected. The expansion module has the following product features: - Up to 12 mechanical push buttons connected. More Rings can be angschlossen providing for additional expansion modules. It can sleep up to 5 expansion modules can be connected to a built-in speaker. - AC query the doorbell connections to prevent oxidation of the key contacts. - Small size. - Protection against incorrect connection of the terminals. - Mounting of the extension module with screws or glue (mounting hardware included). - This component is the establishment of Tuerkommunikationsanlagen with up to 70 participants possible (eg 1 Ceiling Speaker, 5 expansion modules for built-in speaker, 68 home stations AP).Connections: 12 screw terminals for mech. Rings connections: 1 screw joint mass of the Rings connections: 2 system bus connector strips Dimensions: W x H x D 67 x 66.4 x 27 mm (incl. mounting bracket) Dimensions: W x H x D 67 x 56 x 27 mm (without mounting bracket ) Temperature range: -25 C to +70 C Protection: IP 44 Type: 125900


Quantity: 1 unit.