
CHAPTER 2 CONNECTING POWER AND SURGE 23
e Click 200 contains three terminal connectors on both the top and the bottom of the
module (see Figure 2.3). e terminal connectors are removable and are red-keyed, al-
lowing each connector to plug into only one specic jack. is both simplies the wiring
process and reduces the possibility of wiring errors.
Power Drain
Ground (Gray)
RS-485 Drain
RTS (Orange)
CTS (Brown)
-485 (Blue)
+485 (White)
+DC (Red)
GND/-DC (Black)
TD (Yellow)
RD (Purple)
-DC (Black)
+DC (Red)
+485 (White)
-485 (Blue)
CTS (Brown)
RTS (Orange)
Power Drain
RS-232 Drain
RS-485 Drain
Ground (Gray)
TD (Yellow)
RD (Purple)
RS-232 Drain
Figure 2.3 – Click 200 Terminal Connections (protected and unprotected sides)
If you have an 8-conductor cable, it will have the following wiring dierences:
ere is no gray ground wire.
Instead of three drains, there is only one. is drain can be connected into any of the
screw terminals marked GND.
e white +485 wire will have a blue stripe.
Note
See Appendices A and B for cable pinout diagrams for the two dierent connectors
found on SmartSensor HDs.
Wiring to Earth Ground
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-. (2.1-m) grounding rod. Follow the steps below to correctly wire to earth ground:
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