Support SFF-8472 (industry standard multilateral protocol), according to the SFF-8472 protocol, must support the digital diagnostic monitoring (DDM, Digital Diagnostic Monitor) function, this feature allows the end user to real-time detection of the SFP parameters, such as the basic five monitoring quantities: temperature (Temperature) The SFPs are also capable of monitoring the transceiver supply voltage (Vcc), laser bias current (Tx Bias Current), optical output power (Tx Power), and input power (Rx Power).
SFP is also known as "mini-GBIC" because it is based on the GBIC interface, which allows for greater port density (transceivers per inch on the motherboard edge) than GBIC.
Expanded profile:
Basically, GBICs are replaced by SFPs. p>GBIC is basically replaced by SFP for the following reasons:
SFP (Small Form-factor Pluggables) can be simply understood as an upgraded version of GBIC.
SFP modules (half the size of GBIC modules) can be configured with more than double the number of ports on the same panel.
SFP modules are also referred to as miniaturized GBICs (Mini-GBICs) by some switch vendors because they are essentially the same as GBICs in terms of functionality.
SFP modules, on the other hand, are more compressed in size and power consumption by placing the CDR and electrical dispersion compensation on the outside of the module. Used for optical communication applications in telecom and datacom, SFP connects the motherboards of network devices such as switches and routers to fiber optic or UTP cables.SFP is an industry specification supported by a number of fiber optic device providers.
SFP supports SONET, Gigabit Ethernet, Fiber Channel, and a number of other communication standards. The standard was extended to include SFP+, which can support 10.0 Gbit/s transmission rates, including 8 gigabit Fiber Channel and 10GbE. Fiber and copper-core versions of the SFP+ module were introduced, and the SFP+ module leaves some of the circuitry to be implemented on the motherboard rather than within the module, as compared to the Xenpak, X2, or XFP versions of the module
Baidu Encyclopedia- SFP