Direct answer: Eagle’s 1000/2000 manual says the Diamond control board supports all brands of photo-eye detectors and shows the photo eye connected through the Reverse Loop input.
The modern safety catch
That broad hardware statement does not cancel current UL 325 monitoring requirements. The correct sensor and wiring method depend on the operator’s UL version and the entrapment zone being protected.
Source checked: Eagle 1000/2000 manual