12
en | Installation
Conventional Automatic Detectors
F.01U.002.707 | 8.0 | 2011.10
Operation Guide
Bosch Sicherheitssysteme GmbH
4.3
Wiring
4.3.1
Wiring the MS 400/MS 400 B
NOTICE!
Keep screening wire as short as possible and insulate it.
Legend
ye
yellow, connects to b1/b2 + / L..b (conventional)
wh
white, connects to a1/a2 - / L..a (conventional)
rd
red, connects to +V
bk
black, connects to 0V
gn
green, connects to shielding wire
c
Indicator output
+V / 0V
Terminals for looping through the power supply to subsequent elements
MPA / FAA-420-
RI
External Detector Alarm Display / Remote Indicator
MPA/
FAA-420-RI
max. 3 m
C
a1/a2
(LSN -/L..a)
LSN +/L..b
rd
+
bk
–
max. 30 V DC
wh
bk
bk
rd
gn
ye
ye
b1
}
b2
Summary of Contents for FCH?320
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