SmartSensor HD - Interprovincial Traffic Services

24 CHAPTER 2 • CONNECTING POWER AND SURGEFigure 2.4 – Earth Ground ConnectionsInstalling the Power PlantProvide power to your installation using the Click power plant. This set of modules includesthe following:˽˽˽˽˽˽Click 201/202 AC to DC converterClick 210 circuit breaker and switchClick 230 AC surge moduleA Click 201 provides 1 A of power and is capable of powering a single sensor, while a Click202 provides 2 A and can power two sensors. (There is also a Click 204 which provides 4 Aof power, but that will usually not be necessary in an installation such as the one outlinedbelow.) The Click 230 helps limit current surges on the power lines; the Click 210 interruptspower during overload conditions and provides a convenient way to turn power onand off.The power plant will either be in a pole-mount box or in a main traffic cabinet. If it’s in atraffic cabinet, the power will be sent to the pole via an underground cable run. How to installthe power plant and then wire to a Click 200 will be covered in the rest of this section.It should be noted that if you have ordered a Wavetronix preassembled cabinet, all of thiswiring and installation will already be done.