The Omron E3JUXM4MN is a digital plastic fiber amplifier module. It is used in applications such as manufacturing automation, machine vision, and robotics. The amplifier has two digital inputs and two output channels, and can be connected to PNP or NPN type fiber-optic sensors. It is a high-speed, high-accuracy device with a response time of less than 0.1 ms. The amplifier also features high-isolation, allowing it to be used in electrically noisy environments.