DRB is the scan tool that's used to plug into the port on your OBDII !
You can see it if you stick your head into the footwell. It's up almost under the dash trim (about in line across from the knob to alter the pedals position) on the door hinge side, just where the carpet ends up the side. It's not covered, you'll see a port with a load of brass-color pins (bit like a scart lead terminal).
(Hey, you not been in there polishing that part of your snake! haha!).