You have a PS1 engine that no, DCS remote will not operate or find and add the engine.
The 2 dings are there telling you you have a protosound 1 engine you just powered up. It is conventional only.
Also note, that in the manual this engine may be picky on what conventional transformers can correctly operate it- seen at the back of the manual.
Vernon's right on the mark.
It might also be very picky on the sequence and position of throttle movements, while and after it's first started up. Normally after the 2 beeps, or dings, turning the throttle off then on again will get it moving.
On earlier models this may not be sufficient. Check out these old posts (below) for some hints.
Follow this link for more detail, embedded within a previous poster's related question on Protosound 1 (PS1):
Rock island set MT-2127LP (6/5/21) | Merlin
Be aware that there is also an alternative approach, which for whatever reason is quite different, that was published back in the day, apparently by MTH. See this link:
PS1 Cautionary Note (6/29/21) | mort1345
Lastly, on the subject of transformers vs TIU's and Lionel TPC's or PowerHouses operating ProtoSound 1's:
Proto sounds Compatability (7/14/19) | Mellow Hudson Mike
Good luck; let us know how it turns out.
Mike