... to connect server, repeater, switch, network switch Description: Ck-if11/21 Series is a speediness 10/100Base-TX Industrial ... 100BaseFX supports single-/multi-mode, SC/ST connector, optional.Ck-if11/21 adopt industry stard design, IP30 protection, rugged ... connectionFiber Ports: 100BaseFX ports (SC/ST connector, optional)Single-mode: 20, 40,60, 80, 120Km,optionalMulti-mode: 2,5Km,optionalWavelength: ...