24VDC 8 Channel Relay Module 20x4 and when trigger voltage is

and when trigger voltage is not supplied to the relay the contact comes back to common to NC from common to NO

then to a slow decay for the remainder of the off-time

Short to ground

and MOSI/SDO/DOUT)

24VDC 8 Channel Relay Module 20x4 and when trigger voltage isThis 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