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  1. R

    Abacus hard wired alarm system

    Hello “Sparky” The base does not have terminals for NO, C, and NC. I twisted the tamper circuit wires together and connected the pos to terminal 1 and Neg to terminal 5
  2. R

    Abacus hard wired alarm system

    Thank you sparky! Very helpful. Wish i had joined this forum sooner!
  3. R

    Abacus hard wired alarm system

    Hello, Thanks for coming back. The smoke detector is Activ Optical smoke detector code number C4416 with associted base Activ Diode base code number C4408D. They were supplied by Fire Protection On Line who referred me to the makers C- Tec. Look forward to any suggestions and thanks in advance.
  4. R

    Abacus hard wired alarm system

    Hello, I have an Abacus alarm system which was installed in the early '90s and apart from having to renew the secondary cell battery in the control box a couple of times has been trouble free. Of late the associated smoke detector has alarmed a couple of times. I took it down and cleaned if and...
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