782-7818 Singlemode Epoxy/Polish ST Connector, 2.5 mm Bayonet, use with 900 µm buffered fibres, 250 µm coated fibres and 3.0 mm jacketed cable. 820-8274 Multimode Ceramic Ferrule ST Connector, 2.5 mm Bayonet with Right-Angle Boot, use with 125 µm fibre.,