Another bit of Worth's worthless advice.
If you are making a penetration into an outside wall with wire, seal the wire and hole with sealant and wait for 24 hours to do the rest of the work.
This way you dont disturb the seal as it cures causing leaks.
I just gave these instructions to a young man at work the other day installing a box to hold a cell dialer outside a building.
The cell dialer didn't have any signal inside that building and had to go outside to get signal.
A cell dialer connects to power and tip and ring on a panel and transmits information to a monitoring station for fire and security.
Just the other day my co worker and I had to pull about 300 feet of wire from the central part of a building to an area of the building that could receive cell signal.
We do this in a very scientific way.
We walk around the building until we can pick up good signal with our cell phones.
