All qualifications can ultimately be converted to UCAS points.
So an A* at A-level is 140 points, an A is 120, B 100, C 80, etc
For AS-level (if not then taken to A2) it's A 60, B 50, etc
BTEC National Diploma (eg Access to HE) goes from 360 (DDD where D=Distinction) to 80 (PPP where P=Pass)
So this means a DDD in Access to HE is equivalent to AAA at A-level.
Therefore 200 points is equivalent to 2 B's at A-level