Black Box Fiber Optic A/B Switches & Switches with Loopback
SPSN-9-12 Fiber Optic Switch
Media Converter / Switch, Singlemode, 60km Gigabit, 10/100/1000BaseTX to 1000BaseFX (SFP with LC) Four Copper Ethernet Ports, Two SFP Fiber Optic Ports
Fiber Optical Switch Array - NanoSpeed™ - Agiltron Inc.
What Is Optical Switch and How Does It Work?
Amazon.com: CableRack Gigabit Media Converter Multimode to Singlemode All-in-one (3 Configurations) Fiber Switch with Dual 10/100/1000M Ethernet Ports (1 Pack) : Electronics
Fiber Optical Switch 1×32 2-channel WebGUI MM | Fibersystem