Samsung SIR-4250 - Manual (Page 10)

COLOR IR CAMERA COLOR IR CAMERA User’s Manual User’s Manual 19 18
Connecting to Monitor
The recommended adaptor specification for SIR-4250N/P is DC 12V/4A.
Please check the standard power requirement before connecting to power.
• As shown in the table above, voltage decreases as the wire gets longer.
Therefore use of an excessively long adaptor output line for connection to
the camera may affect the performance of the camera.
Standard voltage for camera operation : DC 12V±10%
There may be some deviation in voltage drop depending on the type of wire and the manufacturer.
When the resistance value of copper wire is at [20°C(68°F)]
Copper wire size(AWG) #24(0.22mm 2 ) #22(0.33mm 2 ) #20(0.52mm 2 ) #18(0.83mm 2 )
Resistance value(Ω/m) 0.078 0.050 0.030 0.018
Voltage drop(V/m) 0.028 0.018 0.011 0.006
• Please must be used adaptor that meets the standard requirement.
• Please connect the power after installation.
Notes
Connecting to Power
• The connection method varies depending on the type of monitor and accessories.
Please refer to the user's manual for each instrument.
• Please turn off the power when connecting.
• Please select Hi-Z on the 75Ω/Hi-Z switch for the intermediate video TV set
and select 75Ω for the Intermediate device as shown in the picture below.
Please connect the video output terminal located on the back of the camera to
the monitor.
Connection
CCTV Camera
Monitor
CCTV Camera
Intermediate End monitor