Compact, universal fiber optic connection unit for mounting on flush-mounted or hollow wall boxes, for surface-mounted or mounting rail mounting, Equipped with couplings with laser shutter and single-mode pigtails for splicing to FITH cables with single-mode fibers, pigtails with single-mode fiber OS2, E9/125 µm, IEC 60793-2-50 B.1.3 and B.6_a, bend-resistant according to ITU-T G.657.A1, compatible with ITU-T G.652.D, Unused cutouts closed with blind plugs, Cable entry options: rear, top, bottom, left or right, With integrated clips for mounting rail mounting in two directions, Pivoting removable splice cassette for up to 8 crimp splice protectors, Cover can be removed without tools, Plug direction 90°, Color of the cover parts pure white RAL 9010, Variants: equipped with SC APC, SC UPC, LC-D APC or LC-D UPC couplings and matching pigtails, variants also available in Grade B