Steps:1. Drill hole through wall to install intercom. In this instance, the guest's home was stucco, so they used a hammer drill with a masonry bit to drill through the wall (figure A).
2. Insert a stiff wire through the hole to act as a feeder wire. Tape the wire for the intercom to the feeder wire and pull it through the wall.
3. Place the mounting bracket for the intercom over the hole and mark the position for drilling holes for anchors (figure B). Drill pockets just deep enough for the anchors.
4. Insert plastic anchors into hole, then secure bracket with screws. Insert foam plug around wire to fill hole, then seal off hole with a bit of silicone caulk (figure C). Attach intercom box and proceed to camera installation.
5. Drill through the wall for camera wire. Position camera mounting bracket over hole and mark points on wall for drilling (figure D). Make sure the camera is mounted where you'll have a good view of your doorway.
6. Drill holes for anchors, insert anchors and attach mounting bracket using screws.
7. Drill another hole for the camera feed wire. Run the wire through the wall. Use supplied rubber grommets to seal holes in wall around the wire.