CEMB USA N300 - Manual (Page 20)

3 - 2 Initial screen
The data transfer function, identified by a relative screen, opens automatically when a USB
cable is inserted into the port of the N300 instrument and that of a PC whilst the first
screen is displayed.
In this state the PC acts as master, whilst the N300 instrument acts as a simple slave,
therefore pressing keys no longer has any effect.
Once the data has been transferred to the PC (see Chapter 7–6 Reading data from the
N300 instrument), disconnect the USB cable to return to the main panel.