Connections - Simons Voss Technologies SOM + SREL3.ADV Manual

SOM + SREL3.ADV

8 Connections

(Manual)
1 2 3 4 5 6 7 8
28 27 26 25 24 23 22 21
Circuit
No. Explanation
board
Brownout detection: Open collector, connected to GND
if supply voltage is sufficient.
This output activates if the supply voltage at V
below 10.0 V
ally connected to the AUX relay's coil. If the supply
1 Out
voltage falls at V
other relay contacts activate unchecked due to the de-
creasing voltage. When the supply voltage is applied,
the output does not activate until the module has fully
initialised and relay contacts can no longer switch un-
checked.
2 I- Isolated digital input. Currently not in use.
3 I+ Isolated digital input. Currently not in use.
Controller connection: Data Line B; connected to con-
4 B
tact for Reader 3.
Controller connection: Data Line A; connected to con-
5 A
tact for Reader 3.
Controller connection: Earth; connected to contact for
6 C
Reader 3.
Relay 4: Potential-free contact (NC treated as NO in
7 4a
software); activated depending on authorisations.
9 10 11 12 13 14
20 19 18 17 16 15
(±0.5 V ). The earth connection is usu-
DC DC
, the AUX relay activates before the
IN
8. Connections
12 / 27
falls
IN