Waveform
Display Function
Copyright © Itech Electronics Co., Ltd.
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External trigger input (Ext)
When the trigger source is set as Ext, input the trigger signal into the external
signal input interface (Synchronous) of the rear panel according to the following
specifications.
Projects
Specification
Interface type
BNC interface
Input level
TTL
Minimum pulse width
1µs
Trigger delay time
Within (1μs + 3 sampling cycles)
NOTE
When the voltage higher than 0-3.3V is applied on the external signal input interface
(Synchronous), the instrument may be damaged.
Minimum pulse width: refers to the width of the high or low trigger level, at least 1µs.
Trigger delay time: refers to the delay between the appearance of the trigger level and the
response of CPU, within (1μs + 3 sampling cycles).
