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5
Mounting / Installation
Connection diagram
48
Building Technologies
A6V10316298_e_en_--
Fire Safety
2014-05-21
5.12 Connection diagram
Cables and topology
l
The connection is established from detector base to detector base using
twisted or untwisted wire pairs.
l
Wherever possible use twisted, unshielded cables.
l
Shielded cables are only required in special cases, such as strong high-
frequency fields.
Connecting external alarm indicators FDAI91 / FDAI92 / FDAI93
Observe the following points when connecting external alarm indicators:
l
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
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
1a
1b
5
6
1a
1b
5
6
1a
1b
5
6
E
O
L
+
+
+
+
-
-
-
-
1
2
3
4
2
2
3
4
5
Connection diagram for collective detector lines
1 Control panel
4 External alarm indicator
2 Detector base
DB110 / DB110x / DB110xx
5 Diode (only with DB110D and
DB110RD)
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.