Noobie question about digital cables

[KT]

Hello,

I'm about to finish the Scott Nixon DacKit that I've had for several years but never got around to building.

Well, it's almost done and I have a question about the cable I sould use.

I'm pretty new at digital cables so I'm essentially clueless, but can I use a Tributaries cable that was originally marketed as a composite cable for video?

Is this a 75ohm cable, and will it work for SPDIF, which is what I think the digital output is?

I just want to plug the whole thing in to see if it works and then worry about getting a good sounding cable later. Can I use it?

Thanks,
KT