Wire earth ground, Connect cables – Wavetronix Click 200 (surge suppression) (CLK-200) - Quick-reference Guide User Manual
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© 2014 Wavetronix LLC. All rights reserved. Protected by US Pat. Nos. 6,556,916; 6,693,557; 7,426,450; 7,427,930; 7,573,400; 7,889,097; 7,889,098; 7,924,170; 7,991,542; 8,248,272;
8,665,113; and Cdn. Pat. Nos. 2,461,411; 2,434,756; 2,512,689; and Euro. Pat. Nos. 1435036; 1438702; 1611458. Other US and international patents pending. Wavetronix, SmartSensor, Click,
Command and all associated logos are trademarks of Wavetronix LLC. All other product or brand names as they appear are trademarks or registered trademarks of their respective hold-
ers. Product specifications are subject to change without notice. This material is provided for informational purposes only; Wavetronix assumes no liability related to its use.
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Wire earth ground
4
Connect cables
The Click 200 does three things in a sensor
installation: first, it sends power from the power
plant to the sensor. Second, it passes serial com-
munications between sensor and cabinet and
between different cabinets. Finally, it surge
protects sensors and cabinets. If your installation
has an underground cable run, use two Click 200
devices: one in the pole-mount cabinet, the other
in the main traffic cabinet, as shown above. These
devices protect the sensor and the main traffic
cabinet from surges on the underground cable run caused by lightning striking the ground nearby.
Note. There are two cables your Click 200 could use. To tell which one you have, look at the connector: the
SmartSensor cable has the larger 26-pin connector and the 8-conductor cable has the smaller 10-pin con-
nector. The wiring of these two cables
will vary slightly, as outlined below.
1 Run a cable from the sensor into
the pole-mount cabinet. Wire it
into the PROTECTED side of the
Click 200 (as shown near right).
2 Wire a second cable into the UN-
PROTECTED side (as shown far
right). Run that cable from the
pole-mount cabinet to the main
traffic cabinet.
3 Wire that cable into the UN-
PROTECTED side of the second
Click 200.
All Click 200 devices should be mounted on a DIN rail that is connected to earth ground, either through
an earth-grounded chassis or a 16 AWG or larger grounding wire attached to a 7-ft. (2.1-m) grounding rod.
Follow the steps below to correctly wire to earth ground:
1 Connect the grounding wire from either the DIN rail or a GND screw terminal on the UNPROTECT-
ED side of the Click 200 to the lug bolt on the inside of the pole-mount box.
2 Connect another grounding wire from the exterior lug bolt to earth ground.
WX-500-0179
Smart
Sensor
120
VAC
Main Traffic Cabinet
Pole
Mount
Traffic
Cabinet
Both ends of the homerun
cable connect to the
UNPROTECTED side of
the surge modules.
Power Drain
RS-232 Drain
RS-485 Drain
Ground (Gray)
TD (Yellow)
RD (Purple)
GND/-DC (Black)
+DC (Red)
+485 (White)
-485 (Blue)
CTS (Brown)
RTS (Orange)
RD (Purple)
TD (Yellow)
Ground (Gray)
RS-485 Drain
RS-232 Drain
Power Drain
RTS (Orange)
CTS (Brown)
-485 (Blue)
+485 (White)
+DC (Red)
-DC (Black)
The 8-conductor cable differs from the images above in these ways:
there’s no gray ground wire; there’s only one drain, which can be
connected to any GND terminal; the white +485 wire has a blue stripe.