I will start a new thread since I high jacked the other guys post. So i called tech support last week and the only thing they could tell me was i had the right EOLR (1k for hardwire) and the tamper was set to off, but that was it. My problem is expansion board (4219) number 7 says all zones are in fault and expansion board (4219) number 8 says faulty board. I went through and checked all wiring and all was well. I even took a few zones off the 4219 and connected them to the vista, not prob. I am not sure what else to test for and a few guys said to use a volt meter, but should I be checking? I can take a few screen shots of the tuxedo if that would help. On a side note, I have called three alarm company’s her in Sacramento and they won’t even call back after I tell them what is going on, I had no problem paying them 125 hour to trouble shot, just wanted it fixed. Pretty sad service around these parts!!!!