JCM Part No . 960 - 000053R _ Rev . 6 © 2007, JCM American, Corporation 1 - 5 General Information AD - 02™ Retrievable Bill Validator Section 1 Dispensing Unit Assembly Rear Unit Assembly Figure 1 - 7 AD - 02 Bill Acceptor Dispensing Unit Assembly The Dispensing Unit transports the selected bill (note) into the Dispenser Slot . Figure 1 - 8 AD - 02 Bill Acceptor Rear Unit Assembly The Rear Unit attaches to the back side of the dis - pensing unit to direct bills to the Intra - Chamber Bill Transfer Unit .