Chapter 2 Setup For USB Interface Model USB interface connection diagram This printer is connected to the host computer via the USB port. When a customer display (DM-D) is to be connected, connect it to the host computer via the serial port. The modular cable is amounted on the cash drawer. 2 TM-T20 Cash drawer Connecting the USB interface cable 1 Connect the USB cable to the USB upstream connector. 2 Connect the other end of the USB cable to the host computer. USB cable 39 Power supply unit + AC cable -D AC cable Serial cable USB cable Modular cable