Connection - Bosch FAD‑420‑HS‑EN Manual Del Usuario

Duct Smoke Detector
Figure 4.16: Locking the detector in the base
2.
5

Connection

Figure 5.1: Connection
1, 2 Connections for looping through the
Bosch Sicherheitssysteme GmbH
a Marking for correct detector position
Turn the detector clockwise until the markings on the base and detector are aligned.
auxiliary power supply
3 Shielded wire (incoming/outgoing)
AUX1 + AUX1 +
AUX1 –
a1
b1 b1 b1
AUX2 + AUX2 + AUX2 + AUX2 +
AUX2 – AUX2 – AUX2 –
a2
b2 b2 b2
Shield Shield Shield Shield
Shield Shield Shield
RI– RI–
RI+
NO NO
COM COM
NC
5 LSN outgoing
6 External alarm indication
Installation Guide
Connection | en
Can only be used if there is no FAD-RB-
DIBT Relay Board fitted!
2019.02 | 9 | F.01U.033.733
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