GND together with V-

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Dr.
Posts: 3
Joined: Tue Feb 02, 2021 5:45 pm

GND together with V-

Post by Dr. »

Dear all I have a question for wiring Luna's DMX outputs, mainly the XLR GND to V- of a power supply.
Generally in company I work in, I learned that its good to wire each GND to a V-, but I just had to ask if its a good practice or not? Under the text you can see how we generally wire DMX out with V- from a Power Supply.

https://prnt.sc/y1hdua

So, is it a good practice to do GND to V-, or it totally doesn't affect anything?
Is the GND from Luna's output enough and doesn't require additional grounding trough the rest of the line?
Schulze
Posts: 145
Joined: Fri Mar 22, 2019 4:21 pm
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Re: GND together with V-

Post by Schulze »

Hi Dr.,

Power and data supply should be treated separately. The power supply of the LUNA already includes the PE connection. Could you please further elaborate on the sent image?
Dr.
Posts: 3
Joined: Tue Feb 02, 2021 5:45 pm

Re: GND together with V-

Post by Dr. »

Thank you for your reply.
I included a new picture of the specified DMX buffer -> https://prnt.sc/zq50s5
This is a buffer that repeats DMX signal across the line, hope this image explains it in more detail.

BR, Dragan
Schulze
Posts: 145
Joined: Fri Mar 22, 2019 4:21 pm
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Re: GND together with V-

Post by Schulze »

Hi Dragan,

Since we do not know the electrical circuit of the DMX Buffer, it is difficult to make a concrete statement. Please contact the manufacturer of the DMX buffer on that regard. Sorry!
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