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Physical features – Wavetronix Click 400 (900 MHz radio) (CLK-400) - User Guide User Manual

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CHAPTER 20 CLICK 223

Physical Features

Figure 20.2 – Diagram of the Click 223

The faceplate of the Click 223 has two RJ-11 jacks, which provide two independent serial

connections:

˽

RS-485A (upper jack) – passes RS-485 between the jack, the 485A screw terminals on

the top and bottom of the device, and the T-bus 5-position connector.

˽

RS-485B (lower jack) – passes RS-485 between the jack and the 485B screw terminals

on the top and bottom of the device.

As mentioned above, the back of the Click 223 features a 5-position connector that plugs

into a T-bus connector and passes power and communication from the Click 223 to the rest

of the T-bus and vice versa. This connector is only connected to the RS-485A bus; any data

on the RS-485B bus will not be transmitted on the T-bus.

The top and bottom of the Click 223 each have three pluggable screw terminal blocks with

four terminals each, for a total of twelve connections. These terminals are used for wiring

in the cable from the SmartSensor Advance or other external device. Each set of twelve

terminals is made up of the following:

˽

+DC and -DC for power

˽

Four ground terminals for drains

˽

Two PE (protective earth) terminals for earth ground

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