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3. Exterior Appearance of DSO Host
◆ USB connector: The interface
connected DSO to PC.
◆ Power LED: When power supply is
normal, power LED will display red
light signal.
◆ TRIG LED: When signal is triggered,
the green light signal will be
flashing.
◆ CH 1: DSO Channel 1。
◆ CH 2: DSO Channel 2。
◆ PROBE COMP: Output 3.3V 1KHz
square wave is used as a reference
signal to adjust the probe.
◆ GND: Grounded
◆ EXT TRIG: External trigger signal.