Mounting / Installation
Electrical connection
5
46 | 66
Building Technologies
007011_m_en_--
Fire Safety
2018-06-28
Variant B
1. Connect the positive pole of the external alarm indicator to the positive pole for
the external alarm indicator on the detector.
2. Leave the negative pole for the external alarm indicator on the detector
unoccupied.
3. Connect each of the two negative poles of the external alarm indicator
separately to both negative poles of the detector line.
The two negative connections of the external alarm indicator are decoupled
externally in the alarm indicator by diodes.
4. Connect the shielding of the detector line with the shielding of the connection
cable to the external alarm indicator with an auxiliary terminal DBZ1190-xx.
5.3.2 Connection to a collective detector line
Connect a control panel-specific end-of-line to the end of the collective detector
line.
5.3.2.1 Use of unshielded cables
The connection is established from base to base using twisted or non-twisted wire
pairs.
Figure 20: Connection diagram for collective detector line with and without external alarm indicators
(without shielded cables)
1 Control panel
3 External alarm indicator
2 Detector
4 End-of-line depending on control
panel
Standard circuitry
With standard circuitry, the external alarm indicator is connected to the positive and
negative poles of each detector.
LINE
+
-
1
2
C
4
B
3
A
+
LINE
+
+
_
_
+
_
LINE
+
+
_
_
+
_
LINE
+
+
_
_
+
_
