VTech BM4200N User Manual page 31

3. Align the wall mount bracket and screws with the holes in the wall as shown.
Tighten the screw in the middle hole first, so that the wall mount bracket position
is fixed. You can tighten the other screw in the top hole.
OR
Insert the screws into the holes and tighten the screws until only 1/4 inch of the
screws are exposed.
4. Place the camera unit on the wall mount bracket, and then slide it forward until
it locks into place. Connect the power adapter to the camera unit and a power
supply not controlled by a wall switch.
OR
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