The central module is built into the signal control device. It consists of at least two separate boards in European card format:
The communication card is the communication center of the net.1 bus in the external facility.
Up to two interface cards can make six connection groups each available for the push button and the acoustic unit.
Both cards must be integrated in unoccupied 3HE-slots in the control device. Pluggable multipoint connectors with crimp technique in accordance with DIN 41612 provide maintenancefriendly contacts and thus adhere to established technical standards.