Wireless DMX module XLR enclosure by bipsen

Last crawled date: 3 years, 2 months ago

An enclosure for wireless DMX modules (often available on ebay). The enclosure has been designed to be screwed directly on to a female 3 pin XLR connector (M17x1.0 thread).
Also, a DC connector is added, so that the module can be powered by an external 5V power supply (for example an USB charger). Links to parts on eBay
Wireless DMX Module
Female Chassis mount DC Power connector
USB to DC adapter cable (straight)USB to DC adapter cable (angled)M3x12 screwsAssembly instructions
First insert the DC power connector in the base part, and tighten the nut on the DC connector on the inside.
Next, the antenna for the DMX module need to be mounted. Mount the antenna connector to the EndCap piece, and tighten the nut on the SMA connector. Now glue the EndCap to the body.
Now it is time to mount up the wires and do some soldering.
WARNING: Do NOT trust the colors on the wires on the plug/cable delivered with the module.
Check the attached picture for how the connections were on my modules (my markings with red text). I relocated the wires in the JST plug, so the coloring made more sense.
First, solder the power connections to the DC connector - remember to have an extra wire soldered to the negative pin of the DC connector - it should be used for the XLR connector.
Next, pass the D+, D- and GND wire through the hole in the end of the body, through the XlrPlug piece (remember to orient it correctly) and through the XlrRing piece. Solder the 3 wires to the 3 pins in on the XLR connector.
Pin 1 of the XLR is GND
Pin 2 of the XLR is D-
Pin 3 of the XLR is D+
Now assemble the XLR plug part. Insert the XlrRing into the XLR connector housing together with the XLR plug piece. Then tighten the XlrPlug piece to the back of the XLR connector.
Now carefully try to assemble everything. Connect the antenna to the PCB, and then JST plug to the PCB.The antenna cable can be located under the PCB and go back up - avoid to bend it too much, it will cause signal loss!
You might want to secure the PCB temporarily with a couple of screws while you glue the XLR connector piece together with the body. Once everything is in place, you can remove the temporary screws from the PCB, make sure the PCB is in place - put the lid on the top of the body, and tighten everything together with 4 M3x12mm screws.
will fit better.
Contributions are appreciated - it took me quite some time to get the design made in Fusion360, and a lot of test prints..
If you print a part, please remember to post a "make" picture

Update 2018-02-07: Improved body, lid and endcap added as version 2.1. XLR-Ring and and XLR-Plug parts are still the same.