E1.20 RDM (Remote Device Management) Protocol Forums  

Go Back   E1.20 RDM (Remote Device Management) Protocol Forums > RDM Developer Forums > RDM Physical Layer/Hardware Discussion

RDM Physical Layer/Hardware Discussion Discussion and questions relating to the physical or hardware layer of RDM.

Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
Old February 15th, 2017   #1
Senior Member
Join Date: Jan 2008
Posts: 102
Default Hardware: Grounding of host. Opinions?


I have been grappling with this for a while.

If I build a DMX transmitter / RDM host, what should I do with the RS485 Common?

My standard way is to be a non isolated transmitter as per the DMX spec.

But, Now I am looking at USB powered transmitters that can also run of external plugpack power supplies.

The USB shields do end up being grounded or earthed via the host PC but plugpacks do not usually have mains earth continuity.

Now I am scratching my head.
What does everyone else do in this case?
berntd is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hardware design questions ELMVideo RDM Physical Layer/Hardware Discussion 14 July 21st, 2013 02:52 PM
Welcome to the RDM Physical Layer / Hardware Discussion Forum sblair RDM Physical Layer/Hardware Discussion 0 May 31st, 2006 10:57 PM

All times are GMT -6. The time now is 12:33 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2023, vBulletin Solutions, Inc.