Chapter 3: Installing Power, Surge Protection, and Communications
•
29
Lightning
Surge
Protection
Wavetronix
Pr
ot
ec
ted
Pr
ot
ec
ted
Click!
200
RS
-485
RS
-232 DCE
110 V
AC
Smar
tS
ensor
GND
GND
RD
TD
CTS
RTS
GND
485+
485-
GND
-DC
+DC
L
N GG
L
GND
GND
RD
TD
CTS
RTS
GND
485+
485-
GND
-DC
+DC
Figure 27.
Connecting sensor cable to terminal blocks
5
Now wire the sensor cable (the homerun cable coming from the
pole-mount box): follow the instructions in step 4 to land each
conductor into the correct terminal block. The blocks are col-
or-coded for your convenience: land the red conductor into the
block with the red label, and so on.
6
Make sure the backplate is connected to earth ground.
More information about this setup
Following this section provides everything your sensor needs:
˿
The Click power plant, consisting of a circuit breaker, AC surge
protector, and AC to DC converter, located in the traffic cabinet.
˿
Two Click 200 modules, which are lightning surge protectors,
one at either end of the underground cable run. This protects
all the equipment, especially the sensor, from power surges on
the cable, such as those caused when lightning hits the ground
near where it’s buried, which makes these very important! It’s
also where you can plug in to communicate with and configure
the sensor.
There are no communication options in this setup besides the RS-
232 and RS-485 on the Click 200. An additional communication
device can be easily added to communicate with the installation
remotely.
Note.
All electronic
components should
be grounded.
Warning.
Using
two Click 200s is
standard Wavetronix
procedure for
underground
cable runs. Failure
to follow these
guidelines will void
the sensor warranty.
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