Direct answer: Eagle identifies the E555 Diamond control board as compatible with the Eagle 100, 1000, 200, 2000, 2000-APT, and OH operator families.
Important replacement warning: Gate Operators Direct’s current E555 listing specifically says its SKU is for gate operators manufactured before January 2016 and non-UL applications. A replacement-board purchase should therefore be matched to the operator’s date and board revision, not just the model-family name.
#ad See the current E555 listing and compatibility note