Simons Voss Technologies SmartRelay 3 Kurzanleitung Seite 28

4. Connections
Normal version (without WP)
The reader x (x=1...3) must be connected to the
SREL3 controller via a four-wire cable. Alternatively, the reader can be
connected directly via a supply voltage. In such a case, you only need to
use a three-wire cable (A, B, -) to the controller.
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SR30HYS_F
SimonsVoss
SE
NRF
1 2 3 4 5
- -
+
A B
SmartRelay 3 LED reader
EN