Lenovo SE-551F Setup Manual page 10

3. Unscrew the legacy doorbell button to locate two power wires. (Recommended installation
height is between 47-60 inches.)
4. Take out Always-on bracket and EVA foam from the package.
5. Connect the power wires from the legacy doorbell button through the EVA foam to the
screw terminals of Always-on bracket. (The power wires should use 20AWG)
6. Make sure the power wires are all hidden behind the wall. If there are still power wires left
outside the wall, surround the rest of power wires inside the cable slot of EVA foam.
Caution: To avoid Always-on bracket lying unevenly on the wall to cause a poor
connection between Lenovo Smart Video Doorbell and Always-on bracket, please make
sure the height of wires not above the EVA foam and screw the bracket evenly on the wall.
(The maximum length of 20AWG power wires surrounded inside the EVA foam is 15cm)
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