Connecting The Faa-Msr 420 - Bosch FAP-DO420 Operation Manual

Automatic Fire Detectors LSN improved
version
5.3.2

Connecting the FAA-MSR 420

Maximum contact load (resistive load) of the change-over contact relay:
–
–
Key
ye
wh
rd
bk
gn
NC/C/NO
+V/0 V
MPA/FAA-420-RI
Bosch Sicherheitssysteme GmbH
62.5 VA: 0.5 A at 125 V AC
30 W: 1 A at 30 V DC
1 A / 30 V DC
NC NO
COM
NC
a1/a2
(LSN -)
C
Yellow, connection to b1/b2 (LSN +)
White, connection to a1/a2 (LSN -)
MPA/FAA-420-RI: Red, connection to b1
MPA/FAA-420-RI: Black, connection to c (indicator output)
Green, connection to shield wire
Change-over contact relay
Terminals for looping through the supply voltage for downstream
elements
remote indicator
Operation Guide
C
NO
ye
rd
wh
gn
bk
bk
–
MPA /
FAA-420-RI
Connection | en
max. 30 V DC
b1 | b2
(LSN +)
ye
max. 3 m
rd
+
F.01U.003.448 | 8.0 | 2011.10
19