SFP + Has Photoelectric Conversion Function
SFP + is a new generation of 10 Gigabit optical module, which in accordance with the ANSI T11 protocol, to meet the Fiber Channel 8.5G and Ethernet 10G applications. SFP + is about 30% smaller than the earlier XFP optical module, and is the same as the conventional 1-4G SFP optical module. SFP + only retains the basic electro-optical, photoelectric conversion function, reducing the original XFP design SerDes, CDR, EDC, SFP+ MAC and other signal control functions, thus simplifying the 10G optical module design, power consumption and thus smaller. SFP + has the advantages of high density, low power consumption, lower system construction cost and so on. SFP+ The product is widely used in the field of 10 Gigabit Ethernet optical fiber data communication, which is the mainstream product of 10GU module.
SFP + Has Photoelectric Conversion Function
SFP + optical transceivers are SFP (sometimes referred to as "mini-GBIC") upgrades. SFP has been widely used in Gigabit Ethernet and 1G, 2G, 4G Fiber Channel.

SFP + Advantages:
1, SFP + has a more compact form factor (same size as SFP) than X2 and XFP packages;
2, and the same type of XFP, X2, XENPAK direct connection;
3, the cost is lower than XFP, X2, XENPAK products.

Differences between SFP + and XFP:
1, SFP + and XFP are 10G fiber modules, SFP+ and with other types of 10G modules can be interoperable;
2, SFP + smaller than the XFP size;
3, because the smaller size of the SFP + signal modulation function, serial / deserializer, MAC, clock and data recovery (CDR), SFP+ and electronic dispersion compensation (EDC) function from the module to the motherboard;
4, XFP compliance protocol: XFP MSA protocol;
5, SFP + compliant protocols: IEEE 802.3ae, SFF-8431, SFF-8432;
6, SFP + is more mainstream design.
7, SFP + protocol specification: IEEE 802.3ae, SFF-8431, SFF-8432.

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