CWDM SFP or DWDM SFP? Which Is Your Option?
Small Form-Factor Pluggable (SFP) is designed to meet Multi-Source Agreement (MSA), 1 to 2.5 Gigabit Ethernet, Fibre Channel, and other communication standards to ensure network equipment compatibility. SFP transceivers are available with a variety of form factors, which allow users to select the appropriate transceiver for each link to provide the required optical reach over the available optical fiber type. It is used for both telecommunication and data communication. SFP has many types, such as 100BASE SFP, 1000BASE SFP, BiDi SFP... we would mainly introduce CWDM SFP, DWDM SFP and their differences in this text. CWDM SFP Extended from wavelength division multiplexing(WDM), Coarse Wavelength Division Multiplexing (CWDM) is used to increase the bandwidth of an optical fiber by multiplexing several wavelength onto it. Using 18 channels with wavelengths between 1270 nm and 1610 nm, it improves the transmission speed a lot. A CWDM SFP transceiver is a hot-swappable input/output devi...