Call-button Matrix Door communication System Miscellaneous
The expansion module has the following product features:
- Up to 12 mechanical call buttons can be connected. Additional bell buttons can be connected via additional expansion modules. Up to 2 expansion modules can be connected to one built-in loudspeaker.
- AC interrogation of the call button connections to prevent oxidation on the button contacts.
- Compact design.
- Protection of the connection terminals against incorrect connection.
- Attachment of the expansion module with screws or gluing (attachment materials included in the scope of supply).
- Connections: 12 screw terminals for mechanical bell button 1 screw terminal common earth of bell buttons 2 system bus plug strips
- Dimensions: W x H x D 67 x 66.4 x 27 mm (including attachment tab) W x H x D 67 x 56 x 27 mm (without attachment tab)
- Temperature range: - 25 °C to +70 °C