IQ SMARTSENSOR 105 - Manual (Page 13)

SmartSensor 105 User Guide – Wavetronix LLC 9/20/07
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The Click! 200 has 12 screw terminal connections on both the top and the bottom (see
Figure 7). The screw terminals on the top of the module are surge protected:
Back
The back four terminals consist of one +DC power, -DC and two surge
ground connections;
Middle
The middle four terminals are for RS-485 communication and consist of a
+485 connection, a -485 connection and two connections for ground. One of
the ground connections is used as ground for RS-232 communication;
Front
The front four terminals are for RS-232 communication and consist of TD,
RD, CTS and RTS.
Figure 7 – Surge Protected Terminal Connections
Figure 7 above shows the PROTECTED side of the Click! 200. The UNPROTECTED
side of the Click! 200 contains the same screw terminal connections, but in the opposite
order.