Cascading Principle - Siemens FC700A Hardware Description

Principle of 24V wiring
5.1

Cascading principle

20
Siemens Building Technologies
Fire & Security Products
Standard power supply
Mains
B2F020
-
+
E3C011
X17
8
12V
9
12V
10
Battery 1
max. 27Ah
Mains
B2F020
-
+
+
+
E3C011
+
+
-
X17
-
13
8
12V
14
9
12V
15
10
16
Battery 2
17
max. 27Ah
18
19
20
K1
Auxiliary power supply
operating in parallel
2
+
3
+
+ 4
+ 5
- 6
- 7
13
14
15
16
17
18
19
20
K1
Cascading
2
3
4
5
6
7
007831_a_en_--.doc
03.2004