EXT I/O
EN
Copyright © Qingdao Hantek Electronic Co., LTD
HBT3000 series user manual
47
7
EXT I/O
The EXTI/O interface provides external output and external control functions.
Please read the precautions before connecting.
Warning
：
To prevent electric shock accidents and instrument malfunctions, please follow the
following instructions when connecting the wiring of the EXTI/O connector.
⚫
Please cut off the power supply of this instrument and connect it before
connecting it.
⚫
If the wiring detaches during operation, it may come into contact with other
conductive components, which is very dangerous.
⚫
Please securely secure the external connector with screws.
⚫
Please insulate the instruments and devices connected to the EXTI/O
connector appropriately.
Note
：
⚫
Do not input voltage or current above the rated value to the EXTI/O
connector.
⚫
When using a relay, be sure to install a freewheeling diode.
⚫
Do not use ISO_ 5V and ISO_ COM forms a short circuit.
Figure 7-1 EXT I/O connector
Needle
number
Signal
name
I/O
Function
Logic
1
𝑻𝑹𝑰𝑮
IN
external
trigger
negative
edge
2
（
Reserved
）
IN
－
－
－
3
(Reserved)
IN
－
－
－
