Frame trap with just normals:cr. B, cl. C - This is also a link.
Frame traps into command normals:cl. A, f+B
cr. A, f+B
cl. B, f+B
The next section will consist of block strings that work as frame trap when distance is involved. For example, the Nakoruru block string, cr. A to cr. C, is not a real frame trap but is quite useful for going to qcf+A/ safe knife slide or punishing any jump-in. It is most likely that no other character has this type of the block string that gives the same result, but they can lead to damage with the help of quick max or going into super.
Iori's cr. A to Far D is a good example of a block string with a wide gap. Far D, quickmax, cl. C works at most distances between Iori and his opponent and cl. D can cancel into SDM without extra requirements. I came up with the list using 1-guard Jump against various of block strings. Iori's cr. A to Far D serves as the baseline for this type of strings.

Nakoruru's cr. A to cr. C in comparison:

Or Kyo's cr. B to Far D:

For warning, this type of strings will not last long and are to be used sparingly.
Wide Gap Block String or Wide Gap Frame Trap:cr. B, Far C
cr. B, Far D