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2
If you already have a wired doorbell installed, follow the instructions
below to install your new
IS7121 doorbell unit.
Turn off the power supply to the existing wired doorbell.
Follow Step through Step 5 in
Doorbell wall mount installation
on pages to .
Insert a cross-head screwdriver to the side of battery compartment
on the right, then twist and lift to loosen the screw and the metallic
plates. Using a wire, slide one end of the metal part of the wire
underneath the metallic plate, then twist the screws to secure.
Connect the other end to the transformer.
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3.
Installing the doorbell with an existing wired
doorbell (optional)
Transformer
Transformer
Transformer