Elementary Knowledge of SFP Modules

Optical Module Classification

The common optical module has the following classifications: Divided according to the optical module functions: including optical receiver module, optical transmitter module, optical transceiver module, optical transponder module; divided by pluggable sub, it can be divided into hot-swappable and non-hot-swappable; Package: SFP, GBIC, XFP, Xenpak, X2, 1X9, SFF, 200/3000pin, XPAK; press transceiver rate by transfer rate: low rates, fast, gigabit, 2.5G, 4.25G, 4.9G, 6G, 8G, 10G and 40G; According to the transmit-receive speed, it can be divided into the symmetrical optical module, asymmetric light module; Divided by different network systems, it can be divided into support for Ethernet, support SONET / SDH, support PON; according to the work environment level: it can be divided into network level, carrier-grade, and industrial grade.

Advantages of Fiber Optical Network

The biggest advantage of optical fiber communication is big capacity and long transmission distance. The advantages of wireless communication are movable, but the bandwidth is small. Conceivable that the close-capacity data access tend wireless access, large-capacity video film sfp optical module transmission. Satellite transmission distance is long, the only capacity and a limited lifespan. Wireless and fiber optic communications are complementary, they are perpetuating the two physical network. Many fiber companies are seeking to develop optoelectronic devices and integrated optical device technology. Currently being developed called ASON has automatically switched optical network. The ASON key technology is reconfigurable OADM ROADM, the line can be easily dispatching. The ASON only optical lines can be used for protection, but also to meet the needs of the line scheduling and future development of rental circuit. At present, there are already the non light ASON products. The communication network is SDH network transition to an IP network, and the switch should be IP-based. The development of optical network IP, but also to the further development of the optical router, which need to be resolved optical address of accessing and light cache technology should also be considered. Optoelectronic devices and integrated optical devices need to vigorously develop, because the development of communication technology sfp fiber module, dependent on advances in optical devices.

SFP Optical Module and Fiber-optic Transceiver

SFP optical module can be connected to the fiber optic transceiver communication, if you can choice, what attention you need to pay to? 1: Consistent rate, and that means that the connected SFP optical module and fiber-optic transceiver's transfer rate is the same, Fast to Fast, Gigabit to Gigabit. 2: The same wavelength SFP optical module and fiber-optic transceiver transmission wavelength is the same, they are 1310nm are 1550nm. 3: The transmission interface consistent, SFP optical module and fiber-optic transceiver interface is single fiber or dual fiber. 4: The consistent transmission distance is the same with that of optical power range.

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