Dc label backlight system, Rotary switch modules, Label backlight system – Blue Sea Systems 1408 M-Series Dual Circuit Plus, Main + 3 Position CLB Vertical User Manual
Page 9: 24 volt dc

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DC LABEL BACKLIGHT SYSTEM
ROTARY SWITCH MODULES
12 Volts DC: 
1.	Connect	+12	Volts	DC	to	the	two	Red	wires	coming	from	the	backlight	
 plug connector.
2.	Connect	the	negative	of	the	battery	system	to	the	two	Yellow	wires	coming	
 from the backlight plug connector.
24 Volts DC:
1.	Splice	together	the	Red	and	Yellow	wires	coming	from	the	center	positions		
 of the backlight plug connector using a suitable lug connector.
2.	Connect	+24	Volts	DC	to	the	Red	wire	coming	from	the	outside	position	of
 the backlight plug connector. 
3.	Connect	the	negative	of	the	battery	system	to	the	Yellow	wire	coming	from		
 the outside position of the backlight plug connector.
12 Volt DC
Red
Red
Yellow
Yellow
To +24V DC
Red
Yellow
Red
To Ground
Yellow
To +12V DC
To Ground
24 Volt DC
Label Backlight System
