Duplex Bare Fiber plate mount use with 2.2mm jacket.
This is a great Universal bulkhead flange plate as you can just finished terminate your duplex zip cord fiber push it into the Optolock coupler, push it closed!
Now you can use Proximity switch, or anything that light has to hit one or both fibers
using the FiberFin razor cutters, you will average -2 DB loss.
You have a minimum of 20 N retention strength