b) Essential and Non-Essential Supplies
As shown in the above diagram, the unit may also be wired with two different supplies where one of the supplies is guaranteed to be available referred to as
essential, while the other is referred as non-essential supply. The unit is recommended to be powered using the essential supply. As shown in the diagram, one
or more channels may be powered from either of the supplies.
Ballast
N
L
E
D
D
Ballast
N
L
E
D
D
Ballast
Ballast
Ballast
N
N
N
L
L
L
E
E
E
D
D
D
D
D
D
1
DETECTOR PORTS
2
3
4
5
B COM AB COM AB COM AB COM AB COM A
12
3
4
5
SELV SWITCH INPUTS
VOLT FREE CHANNELS
1 - 1 2 - 2
COMMS BUS
+ 4 -
+ 3 -
+ 2 -+ 1 -
DIMMING CHANNELS
N L
MAINS INPUT
VOLT FREE CHANNELS
N2 L2
N1 L1
CH2
ML
CH3CH1
CH4
DD
CH4
CH3
CH2
CH1
CH1
CH2
CH3
CH4
L
N
N
L
Not
used
NON-ESSENTIAL
SUPPLY
Earth not
shown for
clarity
ESSENTIAL
SUPPLY
Dimming
-3-
W5055E
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