Mixing awning cassette and awning brands...or not?

The Dometic web site gives very little detail, so with assumption the cassette awning you have has a slot in the outer front face that takes a bead, then yes. If it has a channel on the top then the figure of eight clips onto that using a K/S strip as below.

however you may require an adapter called a Kador/Safari strip c/w a figure of eight to connect the K/S to the awning bead if the awning bead and cassette slot are different i.e. 6mm & 8mm.

although to make life easier if you intend to drive away you might as well use the K/S with fo8 anyway. Just make sure it's th right one i.e. Correct bead size for cassette and awning, not all are the same

a useful trick is to put a peg in the ground at the centre of each wheel on the awning side so you can line up easier, roll the cassette out a few inches, connect up then roll cassette back up.

yes you can mix cassette and awning brands.

Unfortunately not a yes/no answer as is the way in this camping lark, as you'll learn

Thank you so much for the reply.  Yes the rail has a slot at the bottom outer face to take a bead, Not sure if it is 6mm or 8mm but I can work that out. I like the suggestions to make fitting easier.  Thanks again.  Tim