It really depends on what you are asking. Termination sequencing most commonly refers to Sanger sequencing, where either a regular nucleotide or a chain-terminating nucleotide (ddNTP) is used for sequencing. You will end up with a lot of different lengths of DNA, where the last (terminating) nucleotide is known, therefore you can determine the sequence of DNA chains.
Péter Gyarmati Thank you for your answer. I have already my nucleotide chain (powder of fragmented salmon DNA) but I don't know the sequence. That is why I would like to identify it. Unfortunately, I don't know how to proceed, available method, protocols, required devices, ...
In addition, I am looking for the termination type (5'/3' or modified).
Ah, I see. If it is from a company, you may just want to contact them and ask. If not, the easiest is to find a sequencing center in your area and they will tell you what amount of DNA they will need and email you the sequence for a fee.