Figure 25: Wiring Example
NOTE:
Please consider possible limitations of the Wiegand Controller regarding the used supply
voltage.
In dependency on the inner circuit of the used Wiegand Controller it is necessary to use
external serial resistors to limit the current on the data and clock wires.
The necessity of the external pull down resistor is depending on the inner circuit of the
used Wiegand Controller
The total resistance incl. the input resistance of the Wiegand Controller should be
1kOhm ± 10% .