NETWORK PTZ CAMERA
User Guide
25
- Power Adapter
The SNP-3370/3301 uses an AC24V 2.5A power adapter for the power supply.
Plug the power adapter into a power outlet.
Chart 3-1. Electrical Resistance of Copper Wire at [20
°
(68
°
)]
- Communications Cable
For the camera to communicate with the controller, a RS-485/422 communications line is
required.
t"NPSTIPSUFSMFOHUIJTSFDPNNFOEFE
for the connection.
Caution
3.3. Preparing Adapter and Cable
t"TTIPXOJO$IBSUWPMUBHFESPQNBZPDDVSEFQFOEJOHPOUIFMFOHUIPGUIFDPQQFSDBCMFFYDFTTJWFMZMFOHUIFOJOHUIF
adapter cable may decrease the performance of the camera.
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Camera Operating Voltage: AC 24V±10%
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Voltage drop measurements on the chart above may vary depending on the type and manufacture of the copper cable.
Copper Wire Gauge (AWG)
#24(0.22
°
)
#22(0.33
°
)
#20(0.52
°
)
#18(0.83
°
)
Resistance (Ω/m)
0.078
0.050
0.030
0.018
Drop Voltage (V/m)
0.028
0.018
0.011
0.06
* The communication cable is not enclosed with the
camera.
