The short answer is no - RJ45 connectors are designed for electrical Ethernet signals, while fiber optics transmit light pulses through glass or plastic. However, modern networks often combine both technologies. A combo port, also known as an optoelectronic multiplexing interface, is a photoelectric composite port with two kinds of Ethernet interfaces (RJ45 port and SFP port) on an Ethernet switch. The following information outlines the differences between switch optical ports and. Typically with fiber you have an SFP (or GBIC) to plug in and adapt to multimode or single mode fiber. If the other end of the link is copper, then you need a copper SFP or GBIC. If it's 2 copper ports, you probably need a Gigabit crossover cable between the 2. Fiber cables are normally. SFP (Small Form-factor Pluggable) is a compact, hot-pluggable network interface module used to connect network devices (switches, routers, firewalls) to fiber optic or copper cables. They can connect their shared communication medium to a national transportation network that includes buses, trains, automobiles, and.
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