The T 2 should have additional underwing racks for 250 kg bombs.
According to “Warplanes of the Luftwaffe” by David Donald, the He 115 A-2, which is the original designation for the T 2, were based on the He 115 A-1, that were upgraded to have 2 250 kg bombs under the wings.
The He 115 C-1, which is designed based on the He 115 B-series, were capable of having 500kg bombs, 1x1000 kg mine, or 2x 500 kg mines, as loadout options.
Im looking into it, but some sources claim the wing mounted pylons for the 250kg bombs were introduced already in the A-1 pre-production model. Also, there are claims that the bomb bay could hold 3x 250kg bombs.
Furthermore, the SC and SD 500kg were a specific R-model aswell.