CHAPTER 19 CLICK 222 171
Configuration Features
e front of the Click 222 has four LEDs that indicate device activity and status:
PWR (red) lights up to indicate that the device has power.
DC Surge OK (blue) lights up to indicate DC surge protection is working.
TD (green) lights up to indicate when data is transmitted over the T-bus or over the
control bridge. is LED does not indicate data transmitted on the A or B ports.
RD (yellow) lights up to indicate when data is received over the T-bus or over the con-
trol bridge. is LED does not indicate data received on the A or B ports.
Installation
e Click 222 is commonly used with the SmartSensor Matrix and SmartSensor 6-conduc-
tor cable; the steps that follow in this section are specic to this application. If you do not
plan on using the 6-conductor cable, you can skip the steps below and simply wire your
power and communications by following the labels on the screw terminals; in this case, be
aware that you should use the terminals marked 485A and 485B for detection calls.
+485B (Orange/White)
+485A (Orange/White)
–
485A (Orange)
–
485C (Blue)
+485C (Blue/White)
–485D (Blue/White)
+485D (Blue)
–485B (Orange)
+DC (Red)
–
DC (Black)
Drain
+DC (Red)
–DC (Black)
Drain
Earth ground
Sensor 2Sensor 1
Figure 19.3 – Wiring the Click 222
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