I have had a very basic X10 system for a couple of months, 6 lamps and one appliance, wireless transceiver, mini controller and cm11a.

All works well...then I just installed an ITI alarm with X10 on board. Turns on lamp 1 during exit and entry delays, flashes lamp 2 when setting to different levels, flashes all lamps 1-9 during a police alarm, turns all 1-9 lamps on during fire alarm, etc. Pretty cool EXCEPT..

After the alarm system does something with the X10 I am completely locked out of ANY X10 control AT ALL for 10 minutes every time!????

The alarm transformer is a Powerline Carrier type (X10 transmitter)

Is the alarm generating 10 minutes of noise? I guess I can test by accessing the very-hard-to-reach transformer, but I was hoping someone would have an answer.

ITI only offers dealer support, and my dealer was stumped. He is going to check....but I know one of you gurus will have an idea.