M-word Segmental LED Display Board

1. Using the CAN bus and is fully compatible with the FK serial system.
2. Supporting M-word segmental LED display of elevator running direction and 2-bit stop that consists of various characters.
3. Displaying elevator state (overload, full load, maintenance, and firefighting) in English.
4. Supporting serial elevator lock and firefighting signal input.
5. Supporting elevator calling and answering display, with embedded calling button.