Okay, I’m not great at this and tried to hook the Evolve with no luck. The gate is operated by a Chamberlain Liftmaster (model 412 hm-01) (owners manual: http://lib.store.yahoo.net/lib/aaaremotes/412HM.pdf )
Basically, 4 connectors labeled 1-4. 1 and 2 are 24v AC/DC, 3 and 4 labelled relay). Is it as simple as connected the white and black (neutral and line) to 1 & 2, and then the blue wires to 3 and 4?