DiyLightAnimation
Hardware => Lynx USB DMX Dongle => Topic started by: soakes94 on November 16, 2011,
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Hi, I'm a bit confused with all the diagrams and LOR and Lynx and 3 pin and 5 pin and crossovers and stuff and was wondering if someone could point me in the right direction. I have a lynx dongle and I need to connect a 5 pin dmx to the end of the cable. What pin from the lynx dongle goes to what pin on the DMX connector? I found this page http://www.diylightanimation.com/wiki/index.php?title=General_Information_on_Dongle_Connections and it confused me a little haha. So if you tell me what diagram to follow I should be sorted.
Thanks
Steve
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Steve,
Pin 2 (Orange with white stripe) from your Lynx device (or dongle) goes to Pin 2 of your 5 pin DMX plug and Pin 1 (white with orange stripe) from your Lynx device (or dongle) goes to Pin 3 of your 5 pin DMX plug.
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The link you have is the best I have seen. The only thing I could add is watch the pin numbers on cat5 cables as the color wire can vary because of different cable standards.
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So just to check I don't need the ground? It's for a commercial dimmer.
Steve
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Yes you still will need ground, connect pin 7 & 8 of the cat 5 to pin 3 of the 5 pin xlr
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Pin 3 of the 5 oin dmx is already used for data, is it pin 1 i use?
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yea pin one is ground.
XLR-5 pin out Lynx equipment
pin 1 Signal (Ground) ----> Rj45 7&8 (optional)
pin 2 Data 1- (Primary Data Link) ----> RJ45 Pin 2 (Orange)
pin 3 Data 1+ (Primary Data Link) ----> RJ45 Pin 1 (White/Orange)
pin 4 Unused Data -
pin 5 Unused Data +
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Thats great thanks :)
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I have a 12 channel controller and a 30 watt led flood i use that has xlr connectors on them. So i have a adapter outside mounted in a box to covert the cat5 to xlr.
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Ahh okay, I was talking to my school technician about my kit and he wanted to have a go on the stage lights, nothing fancy, there all just par cans and things
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Well i built both the items, but at the time i did not even have a dongle or computer control. I had a console with 24 channels on it that i controlled the stuff with.
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Sounds good :) did the consol give good effects?
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It was a stage effects console, so you could fade lights, and make different scenes with it. The led flood i made has 3 10 watt leds in it, i dont know how thee aether II is, but at our mini my flood blew the Aether I away.
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How did you make your flood? I'm interested in using some high power leds, maybe start with 3 watts or 5 watts, the bit I struggle with is the power supply because I know resistors are know use for that power of led.
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Well the 10 watt leds im using, the blue and white run on straight regulated 12 volts, but the red has a wire wound resistor.
I put all 3 leds on a heat sink i made, then put that inside of a flood light unit like the aethers use.
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First time i actually used the flood was this past Halloween.
Thriller- http://vimeo.com/31438401
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It looks good :)
Do you not need some kind of resistor on the 5 watt leds? Because I would be powering it off a computer PSU which can handle about 26 amps at 12V
Steve
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If they say they can be ran off of 12 volts than no. But most likely you will need one. Show me what leds you are thinking about and i can figure out what resistors you need for it. I may even have the right ones in my supply of electronic parts.
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Probably something like this to start with http://www.dealextreme.com/p/3w-led-emitter-on-star-multicolored-rgb-4530 just to have a go and see how powerful these things really are.
Steve
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Looks like the red power will require a 27 ohm resistor, and the blue and green will require a 25 ohm resistor. That is calculations on a 12 volt regulated supply. i would suggest both resistors values be at least 4 watts in power handling.
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You may want to contact Rj or one of the others and make sure the board can handle the 3 watt leds on each channel. Im assuming your gonna be using a dc16 channel controller.
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I'm not sure what controller I would be using, possibly the ren48lsd but im not sure.
Thanks for all your help :)
Steve
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O i know nothing about those controllers, so i cant help you on what it can handle.
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Thats fine :) I cant remember what the transistors are rated at but I can find out :) I was wondering is there another more efficent way of powering high power leds? I was thinking if I had say 10 3W leds thats going to be alot of heat coming from the resistors and I was wondering if there was a more efficent way of dimming or if that was it?
Steve
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While we are drifting off the original topic, LEDs should be driven with a constant-current driver; connecting them straight across a power supply or for the high power ones, with a simple series resistor, will certainly reduce their life.
You can make a constant-current source from a linear regulator (that's what RJ did in Aether 2) or for higher efficiency, use a switcher.
/mike
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If I wanted to power something like 3 of these from a 12V DC supply, what kind of circuit should I be looking at? I can do LED's when its just resistors but I just cant work my head around the high power stuff
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Ahh okay, I was talking to my school technician about my kit and he wanted to have a go on the stage lights, nothing fancy, there all just par cans and things
Per the user agreement Lynx Hardware is not to be used for any commercial application.
Bill
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Do you mean the 12 volt power supply, or the controller itself?
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Ahh okay, I was talking to my school technician about my kit and he wanted to have a go on the stage lights, nothing fancy, there all just par cans and things
Please just do not use my equipment in a school. As per our rules this would be considered a commercial use.
RJ
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Okay that's fine just out of interest since I didn't realise about all of this, is it a legal contract I'm in with yourself?
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It's in the user agreement you agreed to when you joined.
RJ