Hi,
The G designation has been used in the past to indicate that the scope has a built in waveform generator, WaveGen. From the datasheet I believe the DSOX/MSOX 3000G series has the WaveGen built in.
LAN 10/100 BaseT and WVGA Interfaces are standard.
I
2C, SPI, UART (RS232/422/485), I2S, and USB PD serial
trigger and decode, plus Measurement Limit Testing, Mask
Limit Testing, Frequency Response Analysis (Bode plots),
and Enhanced HDTV Video Analysis - Are included in the standard model.
Jay_Diddy_B