Re: ADT Focus 6

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I worked for Aritech in the early 1980's.  They made a six zone panel, for
restricted distribution.  But discovered that the CPU chip (they had custom
masked 250,000 of them) had a program failure that made it go into an endless
loop if more than one zone was tripped.  Panels were sent back to factory and
new chips put in for FOCUS 6 and ADT $100 home alarm panels.  Small world.

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