This module includes 4 PC817 general purpose optocoupler which provides high isolation voltage and noise rejection.

Typical applications:

• I/O isolation for Micro Controller Units (MCUs),
• Noise suppression in switching circuits,
• Signal transmission between circuits of different potentials and impedances.

Features: 

• Independent channels, each one can be controlled using a different voltage level,
• The input ports share the GND,
• The output ports can use the same reference voltage or they can work with an independent GND for each channel, by disconnecting the included jumper cap.

Specifications: 

• Input signal voltage: 3.6-24V 
• Output port voltage: 3.6-30V
• Dimensions (mm): 48 X 38 X 10.3 
• 4 mounting holes with a diameter of 3.5 mm.