Connect the optical module directly to the network cable

You cannot connect an optical module directly to a standard Ethernet cable; an SFP module or media converter is required to convert between optical and electrical signals.Why Direct Connection Is Not PossibleOptical modules, such as SFP or SFP+ transceivers, are designed to transmit and receive optical signals over fiber-optic cables, not electrical signals over copper Ethernet cables . Standard network cables (RJ-45 Ethernet) carry electrical signals, so connecting them directly to an optical module will not work and may damage the equipment. Optical modules require either a fiber-optic cable or a compatible direct attach copper (DAC) cable for short-distance connections .Proper Connection MethodsUsing Fiber-Optic Cables: Insert the SFP module into the device's SFP port, remove the dust cap, and connect the fiber-optic cable with the correct connector type (LC, SC, MPO, etc.) to the module . Ensure both ends use compatible optical modules and fiber types (single-mode or multi-mode) to avoid communication failure .Using Direct Attach Copper (DAC) Cables: For short distances (up to 10 meters), DAC cables with factory-terminated SFP connectors can connect two devices directly without fiber . This is cost-effective and requires no additional power.Using Media Converters: If you need to connect a fiber-optic link to a standard Ethernet network, a fiber media converter can translate optical signals to electrical signals and vice versa . This allows the optical module to interface with RJ-45 Ethernet cables safely and reliably.Special ConsiderationsOnly one type of connection (RJ-45 or SFP/fiber) can be active at a time on combined WAN ports .Always handle optical modules carefully, avoid looking directly into the optical interface, and prevent dust contamination .Check compatibility with your ISP or network equipment to ensure the SFP module supports the required data rate and standards .In summary, directly connecting an optical module to a standard network cable is not feasible. You must use either fiber-optic cables, DAC cables, or a media converter to bridge between optical and electrical network signals safely and effectively.