Abstract: A data transfer system includes a currency cassette adapted to be inserted in a cassette receiving compartment of a cash dispenser mechanism, the cassette having a first printed circuit board on which are mounted a RAM, a microprocessor connected to the RAM, a photodiode adapted to receive data from an LED mounted on a second printed circuit board secured to the cassette receiving compartment, and LED adapted to transmit data to a photodiode mounted on the second board, and a first circuit including a first coil adapted to receive power from second circuit including a second coil mounted on the second board. In operation, data is transferred between the RAM and a microprocessor external to the cassette by means of the cooperating photodiodes and LEDs, with the first circuit serving to provide a dc power supply for the other components mounted on the board.

Abstract: A drawer assembly which prevents a drawer from "jamming up" in a locked position when the drawer is slammed shut while a locking arm associated with a key lock on the drawer is in a locking position. A projection on a retainer clip located on the inside of the front panel of the drawer keeps the locking arm from being bent, and also keeps the drawer from moving to the closed position from which a latching mechanism asociated with the drawer would be placed in a locked position.