This is an additional board for Access Control Fingerprint & NFC.
It can be ordered either as a pure binary input board with 4 inputs or with an additional bistable relay including capacitor to enable switching even in the event of a bus power loss.
Note on the relay:
The relay itself is designed for max. 2 A at max. 30 VDC, 0.5 A at max. 60 VDC or 1 A at max. 125 VAC.
However, due to the relatively low insulation (1,000 V) between the primary and secondary sides, it is recommended to only operate it with a maximum of 60 V.
The additional board is mounted on the base board of the Access Control Fingerprint & NFC plugged in, suitable spacers and screws/nuts are included. 2x 4-PIN headers are also included, which must be soldered onto the base board. This additional board is then simply plugged onto it.
