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Difference between revisions of "DMX Oscilloscope pictures"
From wiki.openlighting.org
(Created page with "Category:Articles There is always discussion about the quality of DMX-USB-interfaces, so I think it is time to face this discussion with the reality. Whats more real, than o…") |
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We should have a complete list - so please, if your interface is not here, try to make a photo and add it. | We should have a complete list - so please, if your interface is not here, try to make a photo and add it. | ||
<br> <br> | <br> <br> | ||
| − | == | + | == Theory == |
<br> | <br> | ||
Erwin Rol is explaining the DMX timing very good [http://www.erwinrol.com/dmx512/ on his website] - the following picture is from this this site - the important part of the signal is around the break - so I tried to catch this part with the oscilloscope | Erwin Rol is explaining the DMX timing very good [http://www.erwinrol.com/dmx512/ on his website] - the following picture is from this this site - the important part of the signal is around the break - so I tried to catch this part with the oscilloscope | ||
| Line 16: | Line 16: | ||
<br> | <br> | ||
'''ETC E-Gate Plus''' | '''ETC E-Gate Plus''' | ||
| − | . | + | [[Image:256ch-etc-egate+.jpeg|left]] |
| + | [http://www.etcconnect.com/product.overview.aspx?ID=20247&lang=us®ion=5 Website] | ||
<br> <br> | <br> <br> | ||
| − | + | Price: ??? | |
| + | <br> | ||
| + | Lenght of cable: 20 m | ||
| + | <br> <br> <br> <br> <br> <br> <br> <br> | ||
| + | Signal strenght: 4,7 V | ||
| + | <br> <br> | ||
| + | == USB to DMX interfaces == | ||
<br> | <br> | ||
| − | == USB | + | '''DMXking ultraDMX Micro''' |
| + | [[Image:256ch-dmxking-micro.jpeg|left]] | ||
| + | [http://dmxking.com/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=26&category_id=1&option=com_virtuemart&Itemid=2 Website] | ||
| + | <br> <br> | ||
| + | Price: 60 $ sometimes cheaper (39 $) | ||
| + | <br> | ||
| + | Length of cable: no cable | ||
| + | <br> <br> <br> <br> <br> <br> <br> <br> | ||
| + | Signal strenght: 3,2 V | ||
| + | <br> <br> | ||
| + | '''Enttec USB open''' | ||
| + | [[Image:256ch-enttec-open.jpeg|left]] | ||
| + | [http://dmxking.com/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=26&category_id=1&option=com_virtuemart&Itemid=2 Website] | ||
| + | <br> <br> | ||
| + | Price: 60 $ | ||
<br> | <br> | ||
| − | + | Length of cable: no cable | |
| − | + | <br> <br> <br> <br> <br> <br> <br> <br> | |
| + | Signal strenght: 4,2 V | ||
<br> <br> | <br> <br> | ||
| − | |||
Revision as of 09:03, 19 August 2012
There is always discussion about the quality of DMX-USB-interfaces, so I think it is time to face this discussion with the reality. Whats more real, than oscilloscope pictures of the signal. I have done pictures of all the interfaces and consoles I could find.
We should have a complete list - so please, if your interface is not here, try to make a photo and add it.
Theory
Erwin Rol is explaining the DMX timing very good on his website - the following picture is from this this site - the important part of the signal is around the break - so I tried to catch this part with the oscilloscope
1. SPACE for BREAK
2. MARK after BREAK (MAB)
10. MARK before BREAK (MBB)
© of the diagramm by Erwin Rol
Ethernet to DMX interfaces
ETC E-Gate Plus
Website
Price: ???
Lenght of cable: 20 m
Signal strenght: 4,7 V
USB to DMX interfaces
DMXking ultraDMX Micro
Website
Price: 60 $ sometimes cheaper (39 $)
Length of cable: no cable
Signal strenght: 3,2 V
Enttec USB open
Website
Price: 60 $
Length of cable: no cable
Signal strenght: 4,2 V
