Hello I think that the TDA-30 is the Canadian version of the TDA-50. The TDA 30 wires out on RJ-12 plugs. Does anyone buy wiring harness or do you all make them? If you buy them, where? Thanks

I just make them up or use patch leads if it is going into a rack. Have not seen a pre-made harness here

I used to buy them from Express in FL. They went out of business, but two companies have taken up the manufacturing of the cables. IIRC they both have similar part number and prices.
It was posted in the Installers section.

Carl

It takes me about a an hour to throw 2 25 pair
hydra cable together I make them while I watch TV
I ring cut at 18 inch's the trick is cut up stock panasonic line cord cut into 1 inch pieces and use them as strain relief I make them 12 feet long and crimp plugs on both ends and I test each one end to end now you have 2 harness's ready to go !If any one wants I'll make them up for them for half what
graybar charges !!