8-Zone Alarm System

  Product Description: 
    This unit is a eight-zone wired security system.  The project involved updating the fire siren output circuitry and software to detect a fault (open or short) in the fire siren loop as per the latest Canadian regulatory requirements.
  Designed at: 
    Tandy Electronics Design 
Sold at: 
    Radio Shack as  49-485A
    Electronics/Firmware Design - Doug Deeds 
    Original Electronics/Firmware Design - Albert Straub