Anyone with firsthand experience with DMX/RDM?
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Re: Dmx/rdm
I guess I'm a dummy....I've never heard of either. What is this?<--- Badcaps.net Founder
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Re: Dmx/rdm
DMX (Digital MultipleX) is typically used for controlling lighting systems (theatrical, architectural, etc.). It's a protocol layered on an EIA485 network that allows a "controller" to talk to the various lighting elements. So, when you're lighting up a building, it provides a standardized way of "talking" to the various "lights" and controlling the "visual effects". For example:
I.e., "light #24 display bluish-green at intensity 18; light #25 display greenish-yellow at intensity 74; light..."
RDM (Remote Device Management) is a protocol enhancement that lets you collect status and configuration information from the devices.
I'm looking for practical tips to avoid making careless errors that might "cost me" (the lighting fixtures are expensive)Comment
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Re: Dmx/rdm
FWIW, attached is one such fixture in "test" mode (all LEDs lit, but at very low intensity). Unfortunately, camera gets confused when you shine a light in its face! Diddle-stick as a reference for scale (it's a bit over 12" long).Attached FilesComment
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I have a Lithonia Lighting 65-Watt Gray Hardwired Compact Fluorescent
I also have back when Light of America had these light bulbs available for yard lights
The issue with Light of America was the blast boards had all most certain board failure while bulbs hardly ever fail
While the Lithonia lighting fixture has all most certain bulb failure
So I have modified the Lithonia lighting fixture to accept the Light of America light bulb and see how long this will last
I have only had this light fixture for not more than a year if it... -
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Hi,
In my workshop I have 12 LED lighting battens and the some of the drivers have failed.
In side there is 2 aluminium PCB with a 72 LED on each PCB as ‘current' Schematic.
I am looking the get some constant current led driver to replace them.
is it there any problem wiring as ‘option 1' Schematic or is it best as ‘option 2' Schematic.
With option 2 I would have to modify the all PCBs, so a lot more work. -
Hi all. Trying to troubleshoot issues with the Dell Laptop power supply (a lot of info here). Now I am waiting for a DC power Jack, as there is a loose contact. Want to check if the ID line of the adapter works - I have given abt 3.2 V to this line through the voltage divider, but can't see any signal on the oscilloscope. Same with the 100500% working AC adapter as well. How to initiate 1-Wire protocol transmission? As I understand, the circuit in the AC adapter should send a package for a while as soon as the supply comes to the SPID line. How to initiate this transmission correctly without... -
Hello,
I have an old BK Precision model 1472C that is working but not the intensity ?
At connector P309:
Pin 1 +5V
Pin 2 when I turn VR2, goes from +.648 to +5.07V
Pin 3 GND
R356
Pin 1 when I turn VR2, goes from +.648 to +5.07V
Pin 2 no matter how I turn VR2, voltage stays at +5.7V
All the resistors around are good, except maybe R355 that reads 37K instead of 48K.
I also would like to know what TC302 (capacitor trimmer) is used for, because when I turn it, nothing happened ???
...
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