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The RoHS icon with this product means the PCBs, components, solder, chemicals are all lead-free and RoHS compliant. And this product is produced in lead free process. Unfortunately, now, we cannot provide documentation for this product is RoHS compliant.
Resources:
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Package Includes:
This package does not include Din-Rail PCB holders and cables.
Notes:
- This board uses 5-pin connectors for I2C bus.
Features:
- PCF8574 I2C chips
- Support 100kHz I2C bus frequency
- On-board I2C bus pull-up resistors
- Address by 3 jumpers for use of up to 8 addresses
- Up to 16 boards on a bus, (use with I2C-IN830MAxV2)
- Interrupt output signal
- On-board interrupt pull-up resistor
- Compatible with most microcontrollers
- 8 Optically isolated digital input channels
- 15-30VDC input voltage
- 3700VDC isolation input voltage
- Operating power supply voltage 3.3-5.5VDC
- Inverse polarity protection circuits
- DIN-rail supports
- PCB size 42.50x72.00mm
This is 8-channel an opto-isolator board for input expander over I2C bus. Each input accepts 15-30VDC. It is suitable for mechanical contact switching devices such as relays, buttons and switches. The board uses PCF8574 I2C chip. It supports 100KHz bus speed and 3.3-5.5VDC bus voltage. The board has three jumpers for setting its own address. So the boards can be connected up to 16 boards on a single bus. Also there are I2C bus pull-up resistors and an interrupt pull-up resistor on the boards. They can be enabled by jumpers.
The board can be placed on DIN rail PCB holder which can be plugged on a tray.
The difference between I2C-IN830MxV2 and I2C-IN830MAxV2 is I2C chip. The I2C-IN830MxV2 uses PCF8574 but the I2C-IN830MAxV2 uses PCF8574A. And the difference between PCF8574 and PCF8574A is I2C bus address.
To prevent damage to the board. Don't plug and/or unplug I2C cables on the board while a power supply still turns on. Turn off a power supply before plug and/or unplug I2C cables on the board.
