When there is no 220V input, the LED is turned off, the optocoupler is not connected. They may interface digital computers output to lamps, relays, and motors different IC families digital ICs of the same family (CMOS, TTL, etc.). LED LIGHT INDICATOR: when there is a 220V input, the LED is on, the optocoupler is switched on and the output is low.Stable output of high and low levels: can be used to detect the existence of a 220 V AC power supply and stably produce high and low levels (NPN output).WITH 2P AND 3P TERMINAL: The green 2P 5.0 terminal is connected to a voltage of 220 V and the 3P terminal is connected to the input of the microcontroller. PLC TERMINAL: when connected to the PLC input terminal, the COM terminal of the automato is connected to the 24V input terminal of the power supply, connect the OUT signal output of the card and the GND on the optocoupler card is connected to the negative pole of the power supply.DETECT TTL LEVEL OF OUTPUT: the TTL level of output can be detected by microcontroller, the power supply can be 3-5V, can also be connected to PLC level 24V.To learn more about how and for what purposes Amazon uses personal information (such as Amazon Store order history), please visit our Privacy Notice. You can change your choices at any time by visiting Cookie Preferences, as described in the Cookie Notice. Click ‘Customise Cookies’ to decline these cookies, make more detailed choices, or learn more. Third parties use cookies for their purposes of displaying and measuring personalised ads, generating audience insights, and developing and improving products. This includes using first- and third-party cookies, which store or access standard device information such as a unique identifier. If you agree, we’ll also use cookies to complement your shopping experience across the Amazon stores as described in our Cookie Notice. We also use these cookies to understand how customers use our services (for example, by measuring site visits) so we can make improvements. What you put into the IN pins, will be replicated on the the OUT pins, but at the higher voltage (HV).We use cookies and similar tools that are necessary to enable you to make purchases, to enhance your shopping experiences and to provide our services, as detailed in our Cookie Notice. We threw some transistors on this compact board to correct the inversion. Great for use in noisy circuits where signal lines require electrical isolation.Ī normal LED opto-isolator will invert the logic of a signal. This breakout board uses the ILD213T optoisolator and discrete transistors to correct the logic. This board will isolate the systems, creating a type of electrical noise barrier between devices. We often use this board to allow a microcontroller control servos or other motors that use a higher voltage than the TTL logic on the (3.3V or 5V) micro, and may cause electromagnetic interferance with our system as the motors turn on and off. This allows the low-voltage side to control a high voltage side. This IC has two LEDs and two photodiodes built-in. This board electrically isolates a controller from the high-power system by use of an opto-isolator IC. This board is helpful for connecting digital systems (like a 5V microcontroller) to a high-voltage or noisy system. Description: This is a board designed for opto-isolation.
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