It was the visitors who crossed first in the 22nd minute with prop Bronson Ross barrelling over off a close-range lineout. Munster responded with their first try seven minutes later, impressive back row Shane Buckley crossing for the first of two with Rory Scannell converting. The out-half finished with 15 points.
Ulster hit back when Paddy Butler was sin-binned and from the lineout were awarded a penalty try after Munster collapsed the maul. Jackson converted with Scannell adding another penalty for Munster who led 13-12 at the break.
Ulster retook the lead in the 49th minute, with centre Mike Stanley cutting a good line to cross over but the see-saw nature of the game saw Munster respond quickly, with scrum-half Neil Cronin knifing over. When Buckley touched down again on the hour mark, Munster were in a commanding ten-point lead.
But back came Ulster again as they earned another penalty try, this time from a five-metre scrum and in the closing stages it was the visitors who did all the pressing. But Munster defended resolutely and Scannell sealed the win, converting a penalty with the last kick of the game.
MUNSTER ‘A’: J Murphy; A Conway, D Goggin, I Dineen, L O’Dea; R Scannell, N Cronin; P McCabe, K O’Byrne, S Archer; J McSwiney, D Ryan; S Buckley, B Kilkenny, P Butler.
Reps: D Johnston for Goggin (22 inj); N Scannell for O’Byrne (HT); L O’Connor for McCabe (HT); F Bradshaw Ryan for Ryan (43); D Sweetnam for Dineen (50); D McCarthy for Buckley (61); D McCarthy for O’Dea (61); J Glynn for Cronin (67).
ULSTER RAVENS: J Owens; R Andrew, M Stanley, M Best, R Scholes; Paddy Jackson, P Marshall; A Warwick, J Andrew, B Ross, L Stevenson, N McComb; F Taggart, S Reidy, R Diack.
Reps: D Ryan for Warwick (HT); S Mulholland for McComb (HT); K Joyce for Jackson (HT); D Shanahan for Owens (48); Paul Jackson for Andrew (53); C Joyce for Marshall (59); P Dunlop for Reidy (59); J Atkinson for Scholes (59).
Referee: L Colgan (IRFU)