User Manual
    GDS-3000 Series User Manual 
22 
USB host port 
TypeA, 1.1/2.0 compatible. Used 
for data transfer. 
Ground terminal 
Accepts the DUT ground lead for 
common ground. 
Probe 
compensation 
output 
Outputs 2Vp-p, square wave 
signal for probe compensation 
(page 191). 
External trigger 
input 
Accepts external trigger signals 
(page 126). 
Input impedance: 1MΩ±3%, 
Voltage input: ±15V(peak), EXT 
trigger capacitance:~15pF. 
Power Switch 
Used to turn the power on/off. 
 : ON 
: OFF 










