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Fiber optic transceivers standard

 Fiber optic transceiver is a standardized form of pre-packaged transmitter / receiver module. They provide a convenient and low-cost mass production, is widely used in the backbone network and access network support, the need for broadband transmission of Internet services and enterprise applications.

ITU-T is responsible for product, is mainly responsible for the program in the field of optical fiber and IEC. Although these organizations, they are still separate, different goals were established, so you must specify the number of products and processes, such as fiber, each organization. Therefore, the cooperation of the two organizations, in order to avoid conflict specifications.

A standardized fiber optic transceivers suitable for fiber media to provide the best PCIe expansion. Signal buffer for translation and standardization PCIe fine-tune the level of the low-voltage differential signaling (LVDS), can understand a wide range of fiber optic transceiver interface bandwidth in a wide range of traffic. Plan to use this high-speed LVDS buffers, buffer used to strengthen and enable the PCIe signal of metal (copper) cable or metal printed circuit board (PCB) traces of the printed circuit board, backplane, server motherboard disposal PCIe of PCIe signal cable between the PCIe bus metals (copper) and fiber optic transceivers, signal conditioning and translation requirements allowed through the optical fiber media.

SFP transceiver is not standardized by any official standards body, but specified by competitors Multi-Source Agreement (MSA). The SFP GBIC design interface, and allows for higher port density (per square centimeter of the transceiver quantities along the edge of the mother board) than the GBIC is also referred to as mini-GBIC SFP. The correlation of the small size of the SFP transceivers are similar, but be soldered to the motherboard through hole device, rather than inserting the edge of the card socket. However, as a practical matter, some network equipment manufacturers to participate in the practice of vendor lock-in, vandalism compatibility, the device's firmware check, will only make the vendor's own "universal" sfp module.

 

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