EC16 Elevator Control Panel & DEX16 Elevator Floor Extension Board User Manual
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3. Each EC16 can connect a maximum of eight RS-485 readers, as shown in the figure below.
Figure 5- 2 Wiring diagram of elevator controller and multiple RS-485 readers
Remarks:
When connecting the RS-485 readers through the RS-485 communication terminal of the elevator
controller, it can provide a maximum current output of 3A (12V), so when using the power output of
the RS-485 communication terminal to supply power to multiple readers, the overall working current
of the reader cannot exceed this value and should be left with sufficient margin. In the calculation, the