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If you have already exhausted the power output of terminals 3 & 4 on your Vista control panel then you can use trigger output 17 on your Vista board to trigger 1 additional siren by doing the following. You will need the wiring harness used for this purpose. The part number is Honeywell 4120TR:
  1. Hook the negative of the siren to pin 1 on your Vista board
  2. Hook the positive of the siren to pin 3 on your Vista board
Now, after you have hooked the siren to the trigger pins as instructed above you will have to go into programming and enter the following information. This programming will let the sirens differentiate between burglary and fire conditions because the siren pulses differently for each condition.
  • Enter into programming by entering your installer code and 800 on your keypad. This will get you into programming. The steps that follow will set up trigger output 17 for use (Pins 1 & 3)
  • Next, enter *79 into the keypad
    • You will then see “Enter Ouput No.”. Here you will enter 17*
    • You will then see “Norm Low=0”. Enter in 0*
    • You will enter 00* to exit program section 79
  • You will then enter *80 into your keypad – This is the section of programming that will differentiate the pulses of the siren.
  • You will see “Enter Ouput Funct #”. Enter 1*
    • You will then see a summary of the programming of that function. Press * again to continue.
    • You will then see “Activated by” . Since we want it to trigger for a zone type we will enter 2*
    • Now you will see “Enter zone type”. Here we will enter 33* (33 is for any burglary alarm)
    • You might then be asked “Partition” if you have a partitionable system. Enter in the partition that this pertains to.
    • You will then see “Output action”. You will then enter 2*
    • You will then see “Output No.”. This is asking for the output number. Ours is 17 so enter 17*
  • You will see “Enter Ouput Funct #”. Enter 2*
    • You will then see a summary of the programming of that function. Press * again to continue.
    • You will then see “Activated by” . Since we want it to trigger for a zone type we will enter 2*
    • Now you will see “Enter zone type”. Here we will enter 39* (39 is for any fire alarm)
    • You might then be asked “Partition” if you have a partitionable system. Enter in the partition that this pertains to.
    • You will then see “Output action”. You will then enter 2*
    • You will then see “Output No.”. This is asking for the output number. Ours is 17 so enter 17*
  • You will see “Enter Ouput Funct #”. Enter 3*
    • You will then see a summary of the programming of that function. Press * again to continue.
    • You will then see “Activated by” . Since we want it to trigger for a zone type we will enter 2*
    • Now you will see “Enter zone type”. Here we will enter 22* (22 is for disarming of the system)
    • You might then be asked “Partition” if you have a partitionable system. Enter in the partition that this pertains to.
    • You will then see “Output action”. You will then enter 0*(this stops the siren when system is disarmed)
    • You will then see “Output No.”. This is asking for the output number. Ours is 17 so enter 17*
This is how to set up the system to trigger one additional siren using the output pins on the board.

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