After reading the Security Diagrams page you know how end of line resistors are wired and that they should not be in the panel. Dave will now show you some of the "less than professional" installations he has seen, done by local security companies.
Most security systems house the main circuit board and standby battery in a metal cabinet with a locking door, like the one in this photo. How secure is this security system? The phone jack for the communicator is mounted OUTSIDE the locked metal cabinet, very convenient for a burglar to unplug. Also, notice in the upper right all the wires are exposed for someone to cut. How long would it take a burglar to defeat this system once he broke in? This system was installed by a local music system company.
To improve the security of this system, one could install cellular back up to send the