Tips: you need 4 Port 3 pin Ethernet to DMX bi-directional converter
see here:
https://www.ebay.com/itm/195603078912
ArtNet-DMX is an Ethernet to DMX bi-directional converters. It provides
bi-directional conversions from ArtNet to DMX512. The equipment with
high-speed ARM processors, follow the ArtNet protocol standard provides
an RJ45 network interfaces and standard DMX512 output interface.
ArtNet-DMX highly compliant protocol standards, real-time, stable and
reliable. It has been designed through a Ethernet DMX transmission, it
has two Operation Mode: INPUT MODE (SERVER MODE), and OUTPUT MODE (NODE
MODE). In OUTPUT MODE, the device via the Ethernet receives Art-Net
signals and convert to dmx512 signals. In INPUT MODE, the DMX512 signal
is converted to Art-Net signal and be transmitted over the Ethernet.
ArtNet-DMX4/8
factory-configure an IP address of 2.xxx and a subnet mask of
255.0.0.0, there is generally no need to amend, you can plug-and-play.
Users or special network configuration can be modified using a PC
configuration tools and WEB browser.
Packing 1 x 2 way artnet DMX512 signal
icontroller
1 x internet cable
1 x USB(Inside have software and manual book)
1 x power plug
1 x box