User's Manual

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Figure 2.2: AC Power Conversion
Each AC power conversion sub-assembly will come pre-wired as shown in Figure 2.2.
The main three components of the sub-assembly include:
 Click! 201/202 AC to DC converter
 Click! 205 AC surge module
 Click! 206 circuit breaker and switch
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! 205
helps limit current surges on the power lines; the Click! 206 interrupts power during
overload conditions and provides a convenient way to turn power on and off for the
entire system.
A PCU will use wired blocks with one terminal at the top and two on the bottom
when one conductor needs to be routed two directions. For example, although not
shown in Figure 2.2, this type of wired block is used to connect AC power from the