Samsung SND-5011 User Manual page 26

installation & connection
Be careful not to reverse the polarity when you connect the power cable.
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Please connect the power adapter when the installation is completed.
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As shown in the table below, you may encounter a voltage-sag depending on the wire length. If
you use an excessively long wire for camera connection, the camera may not work properly.
electrical resistance of copper wire at [20°c (68°f)]
Copper Wire Gauge (AWG)
Resistance (Ω/m)
Drop Voltage (V/m)
Recommended Distance (m)
alarm input wiring Diagram
ALARM IN
26_ installation & connection
#24(0.22mm
0.078
0.028
Less than 20
(5ma sink)
1
2
GND
) #22(0.33mm ) #20(0.52mm
2 2
0.050
0.018
Less than 30 Less than 30
) #18(0.83mm
2
0.030 0.018
0.011 0.006
Less than 30
)
2