Digikeijs require a loconet cable to connect the DR5000 to a DR5033 Booster.
I tried making my own and after some dramas with connections i purchased these ready made cables.
They are over 30cm long or 300mm which ever you prefer.
I found them to be just the right length with the set up i have, happy snap attached.
For the little money they cost, and the heart aches from making your own, these are the only way to fly.
If you require longer ones give use a ring 0412 556689 and we can organise them for you.