10
2.4 Interfaces and connections
The QMP 50 series is equipped with two RS232, one USB device and one cash drawer interfaces. The RS232
ports are used to connect peripheral devices like scanner, display, QuoriLog etc. The USB port is only
prepared for PC communication. It is not to be used with USB devices, like memory sticks, scanners,
printers etc
Important:
Use only shielded cables for connecting any peripheral devices. Switch off the cash
register before connecting or disconnecting any peripheral devices. Please note also the
maximum cable lengths of 5 meters for USB and 15 meters for RS232.
Location of the interfaces (rear view):