Bosch FNM-420-A-RD Installation Manual page 5

Sounder
FNM-420-A-RD/-WH FNM-420-A-RD/-WH
3
LSN in
b1
a1
a2 a1 b2 b1 0V +U
4
Bosch Sicherheitssysteme GmbH
LSN out
b2
a2
LSN
improved
LSN
classic
Installation | All
FNM-420-B-RD FNM-420-B-RD
X x x x X x x
A = 000
A = 001
- 254
A = CL00
2023-07 | 06 | F.01U.099.623
5
X x