I can’t read what’s in the pics because they are small and the resolution is too low. When I zoom in to help view them, the images are too badly pixelated to read.
I’m not familiar with the DTR620. What country or region is it for?
Is the DTR620 able to work with a DTR410/550/650?? If YES, then it can also work with a DLR. If NO due to it being for a different country or region then you are probably SOL.