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23 Programmable I/O Lines
In this LED
5 V to 24 V
and when trigger voltage is not supplied to the relay the contact comes back to common to NC from common to NO
or photocopier door is open or closed
24VDC 8 Channel Relay Module 20x4 23 Programmable I/O LinesThis is a DC 24V 8 channel relay module is an electronic device that consists of 8 independent relay switches. Each switch can be controlled independently, allowing the module to switch multiple devices on and off simultaneously using a single control signal. The relay switches are electromechanical in nature, meaning that they use an electromagnetic field to control the flow of current through a circuit. The 8 channel relay module is commonly used in
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