
CHAPTER 2 CONNECTING POWER AND SURGE 29
To put power on the T-bus, you will rst need to connect a 5-screw terminal block to the
end of the T-bus, then follow the steps below to wire DC to it:
1 Connect +DC (red) from the Click 201/202 to the top screw terminal on the 5-screw
terminal block.
2 Connect –DC (black) to the second screw terminal.
+24V DC
-DC
(red wire)
(black wire)
Green
Gray
+485
-485
GND
Figure 2.8 – Connecting Power Directly to the T-bus
Note
Green T-bus connectors conduct power and communication on the DIN rail backplate;
gray T-bus connectors only conduct power and are used to distribute power without
connecting communication.
You can also wire DC to the Click 200 itself; it will then put that power on the T-bus. If you’d
like to do that, follow these steps:
1 Connect +DC (red) from the Click 201/202 to the +DC screw terminal.
2 Connect -DC (black) to a GND screw terminal.
GND
+DC
Figure 2.9 – Wiring DC Power into the Click 200
Wiring Communication
e last thing to do is decide how to communicate with the sensor. How you do this will
vary based on your installation. If your sensor is connected to a Click 200 in a pole-mount
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