This is a test of the "site alert message system". (edited)
Step-Index VIS / NIR Fiber Optic Feedthroughs and Accessories
VIS / NIR Feedthroughs
VIS / NIR or Ultra-low-OH Fiber, 400-2200nm
Fiber Optic feedthroughs are constructed with 100, 200, 400, 600, and 1000 micron VIS/NIR multimode fibers. They are designed for vacuum applications requiring Fiber Optic connections from inside a vacuum system to external equipment. The fiber is hermetically sealed into a stainless steel shell, using the latest in glass bonding technology, and termates on the vacuum and air side with SMA 905 Premium Connectors.
Typical assembly shown below (requires couplers):