178 CHAPTER 20 CLICK 223
device, wire it, then reinsert it.)
3 Wire the middle pluggable screw terminal block: connect the orange wire to the screw
terminal marked -485A. Connect the orange and white–striped wire to the screw ter-
minal marked +485A.
4 Wire the backmost pluggable screw terminal block: connect the red wire into the screw
terminal marked +DC and the black wire into -DC.
5 Wire the drain into any screw terminal marked GND.
6 Connect a 14 AWG wire between either of the terminals marked PE to a grounded
location, such as a grounding lug or an earth ground terminal block (if you are using
terminal blocks).
If you need to wire the PROTECTED side of the device as well, do so now. However, since
the UNPROTECTED side has already been wired with earth ground, it is not necessary to
follow step 6 on the PROTECTED side.
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