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Wiring the Click 222
The steps below refer to how to install and wire a Click 222. If you are using a SmartSensor Matrix preassembled
cabinet, the device will already be installed and wired; all you will have to do is wire the plug on the terminal block.
A single Click 222 can be connected to two sensors. If you have a four-sensor approach, you will install a second
Click 222 next to the first by repeating the steps below.
1. Using a rocking motion, mount the Click 222 onto the DIN rail, making sure it's on the T-bus with the devices
it's supposed to protect.
Note. Depending on your installation, your Click 222 may be wired in different ways. If you're using terminal
blocks on the lowest DIN rail, you will wire your sensor cable into those, and then wire from the terminal blocks to
the Click 222. If you are not using terminal blocks, you will wire your sensor cable directly into the Click 222.
2. Wire the cable from sensor 1 to the frontmost pluggable screw terminal block: connect the orange and white–
striped wire to the screw terminal marked +485A. Connect the orange wire to the screw terminal marked
-485A. (For ease, you can remove the terminal block from the device, wire it, then reinsert it.)
3. Wire the cable from sensor 1 to the middle pluggable screw terminal block: connect the blue and white–striped
wire to the screw terminal marked +485C. Connect the blue wire to the screw terminal marked -485C.
4. If you are using a second sensor, repeat steps 2 and 3 using that sensor's cable. The orange and orange-
striped wires go into -485B and +485B; the blue and blue-striped wires go into -485D and +485D.
5. Wire the backmost pluggable screw terminal block: connect the red wire into the screw terminal marked +DC
and the black wire into -DC. Wire the drain into either of the terminals marked PE. If you are using two sensors,
these three terminals will both have two wires (one from each cable) terminated in them.
6. Connect a 14 AWG wire between the other terminals marked PE to a grounded location, such as a grounding
lug or an earth ground terminal block (if you are using terminal blocks).
7. If you are using two Click 222 devices, you can either ground them seperately or ground one of them and then
connect the second one to it (by connecting a 14 AWG wire from one of its PE terminals to the free PE terminal
on the first device).
The Click 222 is designed to be used with the Click 112/114 detector rack cards. To connect to the cards:
1. Connect a patch cord from the Click 222 RS-485 A port to a bus 1 port on the appropriate rack card.
2. Connect a patch cord from the Click 222 RS-485 B port to a bus 1 port on another rack card.
3. If you are using Click 112 cards, use a short patch cord to share bus 1 between cards dedicated to the same
sensor, as shown with the two rightmost cards in the figure below.
4. If you have more than two sensors in your system, repeat steps 1–3 for all remaining rack cards.
WX-501-0527 • 05.22
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