Extra PSU in Smart Receiver Box for Extra Power Injection

bundymat

New elf
Joined
Dec 28, 2020
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39
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Townsville
Hi All,

The attached photo is of the smart receiver box i have. I am thinking about adding a 3rd smart receiver and 2nd PSU to power the 3rd smart receiver and will add extra distro board for power injection if needed at a later date. I have read about having common ground between PSU's.

As you can see in the photo, the 2nd PSU will supply power to the 3rd Smart receiver and power distro

My questions is:

When connecting common grounds between 2 PSU, do all 3 of the V- need to be connected between both PSU's

Also one other question with 3,2,3 injection tees, Does the V+ pin on the male 3 pin side of tee have no power going to it, or does it need to be removed to stop power going back to the controller

Thank you for any advise
 

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Thanks for the reply
I should have only used V- when talking of DC volts
So only 1 between PSU or have to connect all 3
 
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