In a distributed network, you need to be able to connect multiple controllers together on the same universe. However, the display layout doesn’t always enable a simple daisy chain connection. This is where DMX splitters come in handy. They split a universe into 4 physical segments. Each segment still gets all 512 channels.
Up to now I have only used simple non isolate splitters.
In fact that are so easy to make I did even bother a Printed Circuit Board.

Old 'Vero' board DMX Spliter'
Old ‘Vero’ board DMX Spliter’

using a 26L31 chip mad things really easy for wiring.

I tend to use SMD for most of my designs these days.

New SMD Quad DMX Splitter
New SMD Quad DMX Splitter

I finished a lay out using SMD and am pretty happy with the results expect to the following points:

So I decided to redo the design using all leaded components. this is the resultant layout.

New Leaded Quad DMX Splitter
New Leaded Quad DMX Splitter

This new design utilises some parts I bought in bulk.

I am still utilising a 3 pin header for the input DMX connector. I find this gives maximum flexibility in terms of final case mounting

6 March

A nice DHL man visited our house bearing gifts,  the Quad DMX Splitter PCB has arrived.

Quad DMX Splitter PCB
Quad DMX Splitter PCB

And the final product.

Assembled Quad DMX Splitter
Assembled Quad DMX Splitter