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.
1.
2.
3.
Installing the doorbell with an existing wired
doorbell (optional)
Transformer
Transformer
Transformer
