I hope this can help someone. I needed to be able to use ALARM OUT on a couple of backyard cameras to trigger a siren. To do this, I used a K80 power control supply that provides power and operates as a relay. You can get this off Amazon. I used 18/2 security cable for the wiring. I got it by the foot, but this is what I used. The K80 is going in the attic but I am going to put it inside a metal electrical box for a bit of fireproofing just in case.
I went this route because to use the relay on the DVR, I would have to run cables 4x farther.
You need to enable IVS under SETTINGS --> EVENT --> SMART PLAN
Then select these features and enable RELAY OUT.
**if anyone is interested in the siren, that is off Amazon as well.
![Screen Shot 2022-02-20 at 9.36.42 AM.png](/data/attachments/119/119620-d85d136e82e2b4373299565507e1a3dd.jpg)
And your wiring schematic should look like this:
![Screen Shot 2022-01-21 at 8.38.28 PM.png](/data/attachments/119/119630-711e3fafef83a3aa7c6c5cab50bf5320.jpg)
I went this route because to use the relay on the DVR, I would have to run cables 4x farther.
You need to enable IVS under SETTINGS --> EVENT --> SMART PLAN
Then select these features and enable RELAY OUT.
**if anyone is interested in the siren, that is off Amazon as well.
![Screen Shot 2022-02-20 at 9.36.42 AM.png](/data/attachments/119/119620-d85d136e82e2b4373299565507e1a3dd.jpg)
And your wiring schematic should look like this:
![Screen Shot 2022-01-21 at 8.38.28 PM.png](/data/attachments/119/119630-711e3fafef83a3aa7c6c5cab50bf5320.jpg)
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