Last fall, while planning my display, I decided I would use the Ren48LSD to drive some RGB strip that form vertical columns on my house. While the actual shape/size of the columns isn't as important, I knew I needed a way to take the 4 outputs in each RJ45 on the Ren48LSD and split them into 3 outputs via terminal blocks.
For that purpose, I designed, and with some help from Mactayl here on DIYC, refined the PCB layout. I got a few samples, and used them this year.
Put simply - the board takes in 3 RJ45 connections from the Ren48LSD, and allows those 12 channels to be split out into 4 sets of 3 channels in a terminal block. Per the Ren48LSD specs, you can get 400 mA of current per channel at whatever voltage supplied to the Ren48LSD.
I'm considering making a full run of these boards, but need to gauge the interest from the community.
Since I'm away from home till late Thursday, I can't post any pictures, but will do so once I get back.
These are small PCB's, approximately 2"x3".
The thread in the "Development" section that describes this PCB and it's layout/function is here