Bosch DCN Next Generation Installation & User's Instructions page 196

DCN Next Generation | Installation and User Instructions | Flush-mounted Devices
Refer to figure 28.6 for a circuit diagram of an external
contact connection that uses the galvanic separation.
External
+
4-12 V(DC)
_
figure 28.6: External contact, connection (1)
Bosch Security Systems | 2007-02 | 9922 141 70525
On PCB
+5V(DC)
1
2
R
3
X7
Refer to figure 28.7 for a circuit diagram of an external
contact connection that does not use the galvanic
separation.
External
< 0.5 m
figure 28.7: External contact, connection (2)
en | 196
On PCB
+5V(DC)
1
2
R
3
X7