20
EN
4. Wiring guide
The types of wiring that you will normally find in a conventional fire detection system are
listed below.
4.1. Zone wiring
CCD-020/040 series control panels are designed to manage the signals of up to 32
detectors or 32 manual call points for each zone, as recommended in the EN54 and UNE
23007-14 standards.
A zone's wiring should begin in the control panel's terminal block and finish in the end-of-
line resistor (4K7 ohms). If any zone is not going to be used, it is necessary to place the
end-of-line resistor (4K7 ohms) in the terminals of this zone's terminal block so that the
system does not detect a fault.
According to the standards, it is not permitted to make a star-connected wire shunt or
install the end-of-line resistor on the terminal block if that zone is in use.
4.1.1. Detector wiring
Conventional fire detection control panels are compatible with DETNOV's range of
conventional detectors. We cannot guarantee that the system will work correctly with
devices made by another manufacturer.
As shown in the above drawing, the + is connected to contact no. 1 (through which
it enters and leaves), while the negative terminal is connected with the line entering
through contact no. 4 and leaving through contact no. 3 to the following detector. At the
end of the line you must place a 4K7 ohm resistor.
+ -
+ - + - + - + -
c nc na c nc na
+ - + -
4K7 resistor
4K7 resistor
3 4
4K7 resistor
+ -
+ -
z1
+ -
z2
+ -
z3
+ -
z4
c nc na
alarm
c nc na
fault
snd1
+ -
snd2
+ -
24v aux
4K7 resistor
1 2
1 2
3 4
1 2 3 4
+ -
z1
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