MADRIX Forum • GND together with V-
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GND together with V-

Posted: Tue Feb 02, 2021 6:04 pm
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.

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?

Re: GND together with V-

Posted: Mon Feb 15, 2021 5:35 pm
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?

Re: GND together with V-

Posted: Tue Feb 16, 2021 1:10 pm
by Dr.
Thank you for your reply.
I included a new picture of the specified DMX buffer ->
This is a buffer that repeats DMX signal across the line, hope this image explains it in more detail.

BR, Dragan

Re: GND together with V-

Posted: Wed Feb 17, 2021 5:20 pm
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!

Re: GND together with V-

Posted: Wed Sep 27, 2023 10:06 am
by Rasemi
I had the same problem but I contacted the manufacturer but they did not resolve itdrift boss