Hello all, Posted this on DIYC but thought there could be a slim chance someone might be able to assist here! I recently acquired a pre-built 2nd hand olsen 595 controller with a ren-c to give me dimming capabilities, Also received a "zc transformer" which has a data in to accept an ethernet cable and 2 outs both with ethernet cable also. 1st problem I had was that when I had it all connected up I wasn't getting power to the boards, no leds would light up. I realised that I needed to get the 5v out of my transformer so I used a multi meter to find 5v out of the ethernet port on and wired it up to give power to the board, Which solved that problem and I got leds on etc. 2nd problem now is that I cant get the pc to communicate with the boards, The cable for the data in side to my zc transformer has 2 serial plugs on the end, I have tried both of them either out port on the transformer to the boards but alas I cannot get anything to work..... The olsen board has the 64 leds on it for each channel and sometimes when I turn the transformer on random ones lightup then stay on, until I turn it off and turn it back on again others have also lit up and stayed on, but mostly when I turn it on I get 2 leds lighting up, 1 on the renc board and 1 on the olsen... So I guess my question is, how do I get this all to work?? I'm using vixen and have set the port output to the reccomended settings and set the pc to the same, I have tried 2 computers as well but I end up with the same result. Any help would be greatly appreciated. Regards, Eric.