Security system model DS7000 with 3 door
switches and 4 motion detectors. I
can Install the 3 door switches and 3 of 4
motion detectors, the system arms
ok. But when I add in the 4th motion detector
I can't arm it. I tryed
installing each part one at a time and arming
the system but when I get to
the 4th motion detector the system won't arm
gives off a repetitive trouble
alarm. Any Ideas? Thanx...