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How To Hook Up An Additional Siren Using Honeywell Vista Trigger Pins

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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Mark Oct 14 at 2:53 am

Yipes! Good write-up except for one MAJOR flaw. Pins 1 and 3 on a Vista board are extremely current limited. For example the Vista-20p (probably the most popular) can only deliver 100mA when configured the way you have suggested. It would be much better if you instructed readers to drive a relay coil from the output pins and use a separate power supply. It's also a good idea to use a realy module rather than a bare relay because those modules always include a protective diode. Please correct. Thanks.

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Jon Boroughs Oct 15 at 9:12 am

I appreciate your input Mark!! Thank you. Very rarely lately do we have people contributing their knowledge to our blog. The directions we have supplied above are directly from Honeywell yet we are always open to new ways of doing things. We test everything we put up on the blog before we post, but we will have to try out your suggestion and then, if it is successful, we will add it to our repertoire.

Have a great day!!

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