I rrecently finished a new home that I installed all electrical, cat5e, and RG-6U. I always terminate all voice and video circuits in a siemens network panel with the appropriate hubs.

This particular home also has an alarm system installed by another contractor. I ran a cat5e from the alarm panel to the network panel. The master hub that I use as an RJ-31X port built into it. My understanding is that if the alarm patch cord is plugged into it, that it "breaks" the incoming telco circuit and routes through alarm contacts. And that once that patch cord is unplugged from the RJ-31X port, that the circuit goes back to normal. This one does not seem to work that way. If I unplug alarm patch cord, I must jumper the RJ-31X port and the expansion port to get a tone.

Am I correct in my assumptions? Also, what is the "proper" configuration for this type of set-up? The alarm installer has never seen a this type of configuration and appears confused as well.