So you're ready to workout and your trainer sends you a list of what looks like hieroglyphics, finger paints, water colors, and "abstract" art.
A1: Chin Ups 5x5-7 (4,0,1,0)
Rest 90 seconds
A2: Push Ups 5x5-7 (3,2,1,0)
B1: External Rotations 3x8-10 (4,0,1,0)
Rest 60s
B2: Trap-3 Raises 3x10-12 (2,0,1,0)
The sets and reps always looks like this (sets x reps). So in our example, A1 is chin ups. The sets and reps are 5 sets of 5-7 reps respectively. So that means 5 sets of chin ups using a weight we can do for 5-7 reps, as we know from the post on loading.
This is the tempo, as we discussed in the tempo post.
We have A1, A2, B1, B2. What this means is you will alternate sets of A1 and A2 until you have completed all listed set. THEN, you will go to the Bs and alternate the same way. Do a set of B1, then rest and do B2, then rest and B1 until you finish ALL the sets.
Last is the rest.
In between the A1 and A2, it says to rest 90 seconds. So after you do a set of A1, you'll rest 90 seconds. Then you'll do A2 and rest another 90 seconds before doing A1 again.