Chris Chapman
Active Member
You may have seen my other post about problems getting some Elation EPAR QA's running on my ION. Here is the tale of troubleshooting, and you be the judge on what the real problem in this setup is:
There are 10 VIVID-R's that are running off of Universe 2. #10 in the series is NOT terminated. This is a Net1 facility with limited Universe 2 ports at FOH, and in galleries SL & SR. The port in question (see below) is in the SL loading gallery.
Taking a separate drop off of Universe 2, a stand alone EPAR acts flaky when connected. Strobes, randomly flashes, does not respond to intensity or hue/sat commands.
Same instrument, when plugged directly into the Universe 2 port on the back of the ION (skipping the network) works fine with a "compatible" profile (OPTI PAR QA) in all modes.
Bring all 10 EPARS up with correct addressing, and profile. Unresponsive, and random flashes/colors happen.
Swap out 3pin/5pin DMX adapter to see if that is the problem. Problem persists.
Swap out DMX cable from wall port. Problem persists.
Take the DMX drop from the last VIVID/R in series (that was unterminated) and problem goes away.
So what do you think? DMX reflection due to no-termination? Or bad port? On the, "Gee, should have thought of that" line is that this port is where we used to plug our DMX projector dowser into. Last year (right after we got our VIVID's) the Dowser started to act flaky on the DMX network. I thought it was a bad port on the dowser. Next step is to put the dowser inline and see if it's troubles are magically cured as well.
What nuttiness have you seen on your DMX network that can be attributed to non-termination?
There are 10 VIVID-R's that are running off of Universe 2. #10 in the series is NOT terminated. This is a Net1 facility with limited Universe 2 ports at FOH, and in galleries SL & SR. The port in question (see below) is in the SL loading gallery.
Taking a separate drop off of Universe 2, a stand alone EPAR acts flaky when connected. Strobes, randomly flashes, does not respond to intensity or hue/sat commands.
Same instrument, when plugged directly into the Universe 2 port on the back of the ION (skipping the network) works fine with a "compatible" profile (OPTI PAR QA) in all modes.
Bring all 10 EPARS up with correct addressing, and profile. Unresponsive, and random flashes/colors happen.
Swap out 3pin/5pin DMX adapter to see if that is the problem. Problem persists.
Swap out DMX cable from wall port. Problem persists.
Take the DMX drop from the last VIVID/R in series (that was unterminated) and problem goes away.
So what do you think? DMX reflection due to no-termination? Or bad port? On the, "Gee, should have thought of that" line is that this port is where we used to plug our DMX projector dowser into. Last year (right after we got our VIVID's) the Dowser started to act flaky on the DMX network. I thought it was a bad port on the dowser. Next step is to put the dowser inline and see if it's troubles are magically cured as well.
What nuttiness have you seen on your DMX network that can be attributed to non-termination?