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5
Mounting / Installation
Connection diagram
5.12
48
Building Technologies
Fire Safety
Connection diagram
Cables and topology
The connection is established from detector base to detector base using
l
twisted or untwisted wire pairs.
Wherever possible use twisted, unshielded cables.
l
Shielded cables are only required in special cases, such as strong high-
l
frequency fields.
Connecting external alarm indicators FDAI91 / FDAI92 / FDAI93
Observe the following points when connecting external alarm indicators:
Wherever possible use twisted, unshielded cables.
l
Connect a maximum of two external alarm indicators to one detector.
l
If a cable with shielding is used to connect the external alarm indicator, this
l
shielding must be linked to the shielding of the detector line cable.
The shielding must not be linked to the external alarm indicator itself.
Connection diagram
2
1a
1b
+
1
-
5
6
5
Connection diagram for collective detector lines
1 Control panel
2 Detector base
DB110 / DB110x / DB110xx
3 Auxiliary terminal DBZ1190-xx
Use the detector bases DB110D and DB110RD if you are installing a fire
detection system in accordance with BS 5839, part 1.
You will find more detailed information in the fire detection system documentation.
2
1a
1b
5
6
3
+
-
4
4 External alarm indicator
5 Diode (only with DB110D and
DB110RD)
2
1a
1b
5
6
3
+
-
4
+
-
A6V10316298_e_en_--
2014-05-21
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