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HARDWIRE INTERCONNECT - SM-SN-1 and HM-SN-1
DO NOT
:
• Exceed the maximum of 30 interconnected alarms on a network.
• Exceed 250 m of connecting wire per circuit.
• Connect SONA alarms to any other models produced by another manufacturer.
For multiple alarm installations use a ‘three core and earth’ style cable between all the alarms to be
interconnected. Connect the interconnect cable between each alarms 'I' terminal. The interconnect
wire (minimum 0.75 mm
2
cable) must be treated as Live, it should be insulated and sheathed.
Mains 230V AC
Power Supply
WIRING KEY
= Live
= Interconnect
= Neutral
= Earth
To other alarms
if fitted
