EPA6220 / EPA6236
7
2.5 Cable Connection
2.5.1 Coaxial and RS-485 Cables
The speed dome cameras support UTC function and RS-485 communication. You can control the speed
dome cameras either through UTC (over coaxial cable) or RS-485 (RS-485 wires).
2.5.2 Power Cable
The speed dome cameras support dual power, 12VDC/4A.
In general, the power cable has resistance, there are internal losses when transmitting the voltage, the
longer of the cable used, the smaller the wire diameter, the worse loss will suffer. In order to avoid losses
of cable causing low voltage and keep the dome work properly, when processing wiring please refer to
the requirement below:
Cable Diameter
0.5mm²(20#) 1.0mm²(18#) 1.5mm²(16#) 2.5mm²(14#)
Dome Distance 11m(37ft) 18m(60ft) 29m(95ft) 46m(152ft)
For example, if a dome is 35 meters away from the power supply , power cable used must be more than
2.5mm², otherwise, the dome may suffer insufficient power supply and could not work properly.
Remark: The dome with 12VDC should be less than 3 meters away from power supply.
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