Simons Voss Technologies SmartRelay 3 Manual page 19

SmartRelay 3 system
7.2 Reader
(Manual)
Circuit
No. Explanation
board
Input 3: Push to open. The relay switches as soon as
26 I3
this contact is connected to I+ (contact 30).
27 I2 Input 2: Connection of external components.
28 I1 Input 1: Connection of external components.
29 - Output: GND
Output: Power supply. Voltage corresponds to V
30 I+
or 12 V - 1 V (PoE).
SR30HYS_F
SimonsVoss
1 2 3 4 5
Reader connection
A
B
-
SE
NRF
1 2 3 4 5
- -
+
A B
SREL3 controller con-
nection
A1/A2/A3
B1/B2/B3
-
7. Connections
19 / 189
- 1 V
IN
Signal
RS-485: Data line A
RS-485: Data line B
GND. Used to establish
the common ground
reference potential for
the data lines. Any
ground connection to
the SREL3 controller.