To replace the AF cards:
Step 1: Remove the old AF cards by flipping
the white retainer tab on the cards into the down position
Step 2: Pull the old cards out of the slots.
Step 3: Set the DIP switches on the new cards according to the chart below. Only the first
two DIP switches are used.
Step 4: Slide the new AF cards completely into the vacant slots starting with card #1 in