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# 255657 22-Aug-2019 16:17
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Is anyone intimately familiar with the Constant Vigil Sentry Lite battery backup? I have a custom unit for my router and phone adaptor that outputs 12 and 5 volts. I have now changed my ISP from RBI to a WISP and the new gateway device is a microwave unit that requires 24 volts instead of 12. A feature of the Sentry Lite is that it can be customised to any output voltage up to 24 volts.

 

I have built some simple voltage regulators in the past so I know that changing the output voltage is usually just a matter of changing a setting resistor. I would like to do something like this with the Sentry Lite. Does anyone have any advanced knowledge of this that would help me on my way?

 

  





I don't think there is ever a bad time to talk about how absurd war is, how old men make decisions and young people die. - George Clooney
 


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  # 2303977 22-Aug-2019 16:38
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I have found the guys at Constant Vigil extremely helpful with any questions - recommend just sending them a message through the form on their website. 




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  # 2303982 22-Aug-2019 17:02
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I did but didn't get a reply. Thought I would try here.

 

 





I don't think there is ever a bad time to talk about how absurd war is, how old men make decisions and young people die. - George Clooney
 


 
 
 
 


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  # 2304003 22-Aug-2019 17:18
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I found that powering a Ubiquiti ToughSwitch with 12V resulted in 24V output, so that could be one option. You'd just have to watch the amps as the amp load will be double the 24V draw of the radio, when it's being boosted from 12V.





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  # 2304087 22-Aug-2019 18:35
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I assume the radio the wisp is using is a ubnt one in which case it can run on as little as 12v but I recommend 15v at the radio as a minimum and with 80m of cable you are probably best to push at least 20v from the supply.

I believe the sentry can be readily adjusted, but check with them.

Edit rechecking I think 12v out is the max


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  # 2304131 22-Aug-2019 19:29
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Rikkitic:

 

I did but didn't get a reply. Thought I would try here.

 

 

 

 

how long did you wait for?


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