Wavetronix SmartSensor 105 (SS-105) - User Guide - Manual (Page 22)

CHAPTER 2 • CONNECTING POWER AND SURGE PROTECTION 21
Figure 2.4 – Earth Ground Connections
Connecting AC Power Conversion
Since the sensor operates on 10-30 VDC, it is necessary to provide AC power conversion
when reliable DC power is not already available. Wavetronix recommends using the fol-
lowing three Click components:
˽ Click 201/202 AC to DC converter
˽ Click 230 AC surge module
˽ Click 210 circuit breaker and switch
Warning
Make sure power to AC mains is disconnected while wiring the AC input.
A Click 201 provides 1 amp of power and is capable of powering a single sensor, while a
Click 202 provides 2 amps and can power two sensors. The Click 230 helps limit current
surges on the power lines; the Click 210 interrupts power during overload conditions and
provides a convenient way to turn power on and off.
Depending on your configuration, these Click modules may be mounted in the pole-mount
cabinet or the main traffic cabinet. When mounted in the main traffic cabinet, a homerun
cable is used to conduct DC power and communication signals to the pole-mount cabinet.
For connections shorter than 600 ft. (182.9 m), use the SmartSensor cable as your homerun
cable. This will simplify the wiring process and ensure reliable connections.