Fiber Amplifier, Not a Sensor
The Omron E3X-DA11V is a fiber amplifier unit, part of the E3X series of sensor accessories. It handles the amplification and signal processing for a remote fiber-optic sensor head—so it's not a standalone photoelectric sensor. This goes in the amplifier bin, not with the barrel sensors. That's another SKU I don't need to second-guess on the shelf.