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L
SN 0300 A
AUX1 LSN1 AUX2 LSN2
+ – a– b+ + – a– b+
a1
b1
a2
b2
a2 a1 b2D b1S 0V +U
C
a1
a2
b1
b2
a2 a1 b2D b1S 0V +U
C
a1
a2
b1
b2
b1
b2
FNM-420-A-BS
FNM-420U-A-BS
FNM-420-A-BS
FNM-420U-A-BS
FNM-420-A-BS
FNM-420U-A-BS
238 en | Wiring
Modular Fire Panel
2016.07 | 12.6 | F.01U.009.201
Wiring Guide
Bosch Sicherheitssysteme GmbH