How many sirens can be added to the VISTA 20P?
If you're looking to hook up multiple wired sirens to your Honeywell Vista 20P, you should definitely be aware of the electrical limitations of doing so.
The Vista 20P siren (or bell) output is a 12 VDC output with a 2 amp current limit. Because there is only one set of terminals (3 and 4) on the panel, you will be wiring the multiple sirens to the terminals in parallel.
That means if you're wiring 3 sirens, you will wire all 3 positives of the sirens to terminal 3 and all 3 negatives from the sirens to terminal 4 on the panel.
By wiring in parallel, you are also dividing the current to each of the sirens. Therefore, if using the built in power supply, you're limited to a total of 2 amps from the sirens.
Let's take the Honeywell WAVE2 Siren. Each one uses 0.5 amps. Therefore, you could wire up to four WAVE2s to your Vista 20P.
If you want more, you could either hook up an auxiliary power supply like the Honeywell AD12612 or Altronix SMP3 for all wired sirens over the 2 amp power limit or, you could hook up a wireless receiver and use the 5800WAVE wireless siren which gets power from a standard wall outlet.
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- Answered By
- Eric Hochberger