
Mounting / Installation
Detector lines
5
79 | 94
Building Technologies
A6V10209291_h_en_--
Fire Safety
2016-03-03
5.14 Detector lines
General cabling information
Preferably, twisted and non-shielded cables should be used. This also applies
to connecting the external alarm indicators.
Shielded cables are only required in special cases, such as strong high-
frequency fields.
5.14.1 Connection diagram
The following applies to FDnet detector lines:
Loops, stubs and T-branches are possible.
You may only connect external alarm indicators to one detector.
5.14.1.1 Use of unshielded cables
The connection is established from base to base using twisted or non-twisted wire
pairs.
Figure 25: Connection diagram for addressed detector line with and without external alarm indicators
(without shielded cables)
1 Control panel
3 Auxiliary terminals DBZ1190-xx
2 Detector bases FDB221/FDB221-AA,
FDB222
4 External alarm indicator
+
-
+
-
+
-
+
-
+
-
+
-
LINE
+
-
+
-
+
-
+
-
+
-
+
-
+
-
-
+
+
-
+
-
+
-
1
2
3
4
2
+
4
+