As you can see from the above list I need a 6m cable for my Edirol DA-2496 sound card. The one supplied is about 2m so will not do the job and with none available commercially I had to make this myself. Luckily I had a decent length of high quality 25 core cable suitable for this job so all I needed to do was get the connectors. Luckily I had some old 25 pin D connectors at work that were to be binned.
First step was to find out the pin configuration of the existing cable and make a diagram. Using a multimeter to check and double check each pin and not forgetting the shield. I was pretty meticulous to ensure I had things right but finally here is the pin diagram:
>> Image - DA-2496 Link Cable <<
Of course the other issue here is whether the the sound card will work over this distance. This is going to be a matter of trial - we'll see.
Next task: solder the wires to the connectors. Pretty fiddly job actually with 24 cores per connector to tin and solder to the pins. Got the job done eventually but I wasn't too happy with the soldering on the first connector my technique was better by the second one. I checked it all out and it was good for continuity and so I thought I would run with this for the moment but I think I will redo this later. OK, the moment of truth...I hooked one end up to the PCI card and the other to the 19" break-out box...and hey presto all worked 